ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#183609 | #3294. 分配 | huyf1048 | 100 | 466ms | 1408kb | C++11 | 1.7kb | 2023-08-09 12:07:18 | 2023-08-09 12:39:01 |
answer
#include<bits/stdc++.h>
#define ll long long
#define inf 0x3f3f3f3f3f3f3f3fLL
using namespace std;
ll n,x,a[1005],f[1005][2],dp[2][5005],flag;
vector<ll> s[1005];
void dfs(ll rt)
{
if(!s[rt].size())
{
f[rt][0] = f[rt][1] = 0;
return;
}
f[rt][0] = f[rt][1] = inf;
for(ll i = 0;i < s[rt].size();i++)
dfs(s[rt][i]);
for(ll i = 0;i <= a[rt];i++)
dp[0][i] = dp[1][i] = inf;
dp[1][0] = 0;
for(ll i = 0;i < s[rt].size();i++)
{
for(ll j = 0;j <= a[rt];j++)
{
dp[i & 1][j] = inf;
if(j >= f[s[rt][i]][1])
dp[i & 1][j] = min(dp[i & 1][j],dp[(i & 1) ^ 1][j - f[s[rt][i]][1]] + a[s[rt][i]]);
if(j >= a[s[rt][i]])
dp[i & 1][j] = min(dp[i & 1][j],dp[(i & 1) ^ 1][j - a[s[rt][i]]] + f[s[rt][i]][0]);
}
}
for(ll i = 0;i <= a[rt];i++)
f[rt][0] = min(f[rt][0],dp[(s[rt].size() - 1) & 1][i]);
for(ll i = 0;i <= a[rt];i++)
dp[0][i] = dp[1][i] = inf;
dp[1][0] = 0;
for(ll i = 0;i < s[rt].size();i++)
{
for(ll j = 0;j <= a[rt];j++)
{
dp[i & 1][j] = inf;
if(j >= f[s[rt][i]][0])
dp[i & 1][j] = min(dp[i & 1][j],dp[(i & 1) ^ 1][j - f[s[rt][i]][0]] + a[s[rt][i]]);
if(j >= a[s[rt][i]])
dp[i & 1][j] = min(dp[i & 1][j],dp[(i & 1) ^ 1][j - a[s[rt][i]]] + f[s[rt][i]][1]);
}
}
for(ll i = 0;i <= a[rt];i++)
f[rt][1] = min(f[rt][1],dp[(s[rt].size() - 1) & 1][i]);
if(f[rt][0] == inf || f[rt][1] == inf)
flag = 1;
}
int main()
{
scanf("%lld",&n);
for(ll i = 2;i <= n;i++)
scanf("%lld",&x),s[x].push_back(i);
for(ll i = 1;i <= n;i++)
scanf("%lld",&a[i]);
dfs(1);
if(flag)
printf("IMPOSSIBLE\n");
else
printf("POSSIBLE\n");
return 0;
}
详细
小提示:点击横条可展开更详细的信息
Subtask #1:
score: 20
Accepted
Test #1:
score: 20
Accepted
time: 0ms
memory: 1268kb
input:
20 1 2 1 3 2 4 6 7 6 4 10 11 8 4 14 3 5 10 11 8 21 13 15 10 1 0 8 12 17 15 0 12 0 0 2 13 1 3 4
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #2:
score: 0
Accepted
time: 1ms
memory: 1272kb
input:
20 1 1 3 4 4 6 3 3 4 5 2 12 4 11 9 4 4 5 9 37 0 21 29 11 0 4 0 0 6 12 8 0 0 0 0 0 7 10 6
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #3:
score: 0
Accepted
time: 0ms
memory: 1276kb
input:
20 1 1 3 2 1 1 1 7 3 4 4 2 9 13 14 5 7 10 12 42 13 17 13 8 0 15 15 2 13 6 5 10 0 0 0 0 8 2 0
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #4:
score: 0
Accepted
time: 0ms
memory: 1272kb
input:
20 1 2 1 3 5 1 4 3 2 4 6 7 5 14 5 7 15 15 11 63 0 26 25 26 0 14 0 0 0 9 0 14 0 0 13 7 0 11 6
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #5:
score: 0
Accepted
time: 1ms
memory: 1268kb
input:
20 1 2 1 1 1 1 3 2 5 8 5 7 4 5 12 9 11 18 2 9 2 0 8 13 0 7 7 2 0 0 0 0 8 0 0 0 0 0 9
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #6:
score: 0
Accepted
time: 0ms
memory: 1268kb
input:
20 1 1 2 3 4 3 7 6 4 1 6 8 13 6 8 11 14 5 1 17 24 6 4 4 2 6 6 9 0 0 0 3 6 2 15 0 3 4 7
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #7:
score: 0
Accepted
time: 0ms
memory: 1276kb
input:
20 1 1 3 4 1 3 3 2 3 2 9 9 5 14 14 12 13 10 11 44 13 31 1 15 0 15 0 22 1 0 0 4 17 1 0 0 9 0 1
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #8:
score: 0
Accepted
time: 0ms
memory: 1276kb
input:
20 1 2 3 2 5 3 7 6 1 2 10 10 1 1 9 14 4 13 10 52 4 15 12 16 13 0 1 13 15 9 13 9 12 2 0 7 2 15 0
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #9:
score: 0
Accepted
time: 1ms
memory: 1268kb
input:
20 1 2 3 3 4 3 5 2 1 9 1 11 11 3 7 15 3 1 1 16 10 22 3 10 0 9 1 0 0 3 0 0 0 0 0 0 0 0 0
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #10:
score: 0
Accepted
time: 1ms
memory: 1272kb
input:
20 1 1 3 1 4 3 2 6 9 10 4 5 3 10 13 1 10 6 19 47 21 47 20 0 0 0 15 17 17 9 0 0 15 8 0 0 0 0 0
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Subtask #2:
score: 30
Accepted
Test #11:
score: 30
Accepted
time: 0ms
memory: 1280kb
input:
100 1 1 2 2 3 2 7 7 1 6 5 10 3 10 11 12 4 3 14 11 19 15 22 10 14 7 5 13 8 1 7 10 10 30 15 17 24 18 3...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #12:
score: 0
Accepted
time: 0ms
memory: 1280kb
input:
100 1 1 2 2 3 6 5 2 2 9 3 11 5 2 12 9 14 13 9 4 10 17 22 15 16 23 5 27 10 20 16 29 1 1 18 16 28 30 3...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #13:
score: 0
Accepted
time: 0ms
memory: 1280kb
input:
100 1 2 3 2 2 2 3 1 3 1 5 7 6 2 13 16 8 11 4 14 7 1 11 10 23 6 6 3 29 17 10 29 21 21 2 19 36 10 18 1...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #14:
score: 0
Accepted
time: 0ms
memory: 1280kb
input:
100 1 1 3 3 3 2 5 3 8 4 10 2 5 14 10 1 1 1 4 13 2 20 1 2 19 2 18 5 5 21 5 1 23 21 7 7 34 32 26 22 35...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #15:
score: 0
Accepted
time: 0ms
memory: 1280kb
input:
100 1 2 1 4 2 2 2 8 6 3 2 11 9 1 5 2 17 4 14 3 15 4 15 18 6 18 13 9 10 2 24 8 28 27 19 10 4 8 16 30 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #16:
score: 0
Accepted
time: 0ms
memory: 1276kb
input:
100 1 1 2 2 1 2 3 4 8 10 1 3 13 14 15 14 10 14 1 3 10 1 12 4 14 24 26 25 12 22 29 27 17 11 32 26 35 ...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #17:
score: 0
Accepted
time: 0ms
memory: 1268kb
input:
100 1 1 3 3 4 2 7 8 8 8 4 5 9 8 6 16 9 9 19 1 16 17 4 12 1 14 14 1 19 7 19 3 22 26 35 30 19 36 11 25...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #18:
score: 0
Accepted
time: 1ms
memory: 1272kb
input:
100 1 2 3 1 4 2 5 4 7 9 6 10 5 3 8 1 16 5 10 7 21 1 19 4 7 12 9 5 24 27 7 10 26 6 4 5 27 12 2 33 11 ...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #19:
score: 0
Accepted
time: 0ms
memory: 1272kb
input:
100 1 1 3 2 3 4 2 1 6 6 8 11 9 4 15 3 6 10 17 17 13 19 17 12 19 2 14 9 7 12 27 18 31 20 16 16 22 6 9...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #20:
score: 0
Accepted
time: 0ms
memory: 1276kb
input:
100 1 1 3 3 5 4 5 5 5 8 11 8 6 12 6 4 6 15 8 15 19 12 9 4 6 26 10 21 14 23 15 25 3 8 14 27 30 20 38 ...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Subtask #3:
score: 50
Accepted
Test #21:
score: 50
Accepted
time: 0ms
memory: 1300kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #22:
score: 0
Accepted
time: 40ms
memory: 1372kb
input:
1000 1 1 1 4 3 6 4 4 4 4 4 2 3 10 10 2 6 9 6 13 14 19 13 17 4 13 14 17 6 22 25 9 29 19 18 15 32 7 4 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #23:
score: 0
Accepted
time: 52ms
memory: 1404kb
input:
1000 1 1 2 3 4 5 5 7 8 9 10 11 12 12 14 14 15 16 18 19 20 19 20 23 24 24 25 27 28 29 30 31 32 32 32 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #24:
score: 0
Accepted
time: 0ms
memory: 1320kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #25:
score: 0
Accepted
time: 7ms
memory: 1356kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #26:
score: 0
Accepted
time: 11ms
memory: 1360kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #27:
score: 0
Accepted
time: 11ms
memory: 1348kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #28:
score: 0
Accepted
time: 26ms
memory: 1372kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #29:
score: 0
Accepted
time: 19ms
memory: 1376kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #30:
score: 0
Accepted
time: 28ms
memory: 1408kb
input:
1000 1 1 2 2 4 5 6 7 7 8 9 11 12 13 13 15 16 17 17 19 20 20 21 23 23 24 26 26 28 29 29 30 31 33 33 3...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #31:
score: 0
Accepted
time: 29ms
memory: 1372kb
input:
1000 1 1 1 3 3 2 6 8 4 2 6 3 1 13 8 14 17 2 17 18 16 16 3 13 23 21 24 17 5 23 20 22 1 33 5 36 12 30 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #32:
score: 0
Accepted
time: 11ms
memory: 1360kb
input:
500 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #33:
score: 0
Accepted
time: 5ms
memory: 1356kb
input:
1000 1 1 1 2 4 5 4 7 7 9 9 10 12 13 14 13 14 17 17 18 20 21 22 21 23 25 26 25 28 28 30 31 32 33 34 3...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #34:
score: 0
Accepted
time: 0ms
memory: 1300kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #35:
score: 0
Accepted
time: 3ms
memory: 1356kb
input:
1000 1 1 2 3 4 4 6 7 8 9 8 10 11 13 13 14 15 16 17 19 19 21 22 23 24 25 26 27 27 29 29 30 31 32 33 3...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #36:
score: 0
Accepted
time: 0ms
memory: 1324kb
input:
1000 1 1 2 1 3 2 1 2 4 8 3 2 9 10 3 14 2 16 18 14 12 4 2 15 19 15 5 21 8 11 10 23 23 13 17 4 8 12 18...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #37:
score: 0
Accepted
time: 6ms
memory: 1356kb
input:
1000 1 1 2 3 4 4 6 5 8 8 10 11 11 13 14 15 16 17 18 19 20 20 22 23 24 24 25 27 27 26 30 31 32 32 33 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #38:
score: 0
Accepted
time: 7ms
memory: 1356kb
input:
1000 1 1 1 3 3 4 6 6 8 9 10 11 12 13 13 15 16 17 18 18 20 21 21 23 23 23 25 27 28 29 30 30 32 33 34 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #39:
score: 0
Accepted
time: 3ms
memory: 1324kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #40:
score: 0
Accepted
time: 0ms
memory: 1324kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #41:
score: 0
Accepted
time: 35ms
memory: 1376kb
input:
1000 1 2 1 3 4 1 1 8 2 7 1 2 4 12 10 6 6 15 12 4 2 11 20 3 4 21 5 11 15 13 27 31 26 10 34 21 29 19 1...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #42:
score: 0
Accepted
time: 33ms
memory: 1404kb
input:
1000 1 1 1 2 3 5 6 5 7 9 10 11 11 11 14 15 16 16 18 19 20 20 21 21 24 25 25 26 26 29 30 30 31 33 33 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #43:
score: 0
Accepted
time: 22ms
memory: 1368kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #44:
score: 0
Accepted
time: 19ms
memory: 1368kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #45:
score: 0
Accepted
time: 11ms
memory: 1372kb
input:
1000 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #46:
score: 0
Accepted
time: 4ms
memory: 1352kb
input:
1000 1 1 2 3 3 4 6 7 8 8 9 9 12 13 14 15 15 17 17 18 20 21 22 23 24 24 26 26 28 28 30 29 32 33 34 34...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #47:
score: 0
Accepted
time: 2ms
memory: 1352kb
input:
1000 1 1 2 3 3 4 5 7 6 9 10 11 12 12 14 15 15 17 18 18 19 20 21 23 23 24 25 27 27 29 29 31 32 33 34 ...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #48:
score: 0
Accepted
time: 3ms
memory: 1356kb
input:
1000 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 17 17 18 20 20 22 23 24 25 25 27 28 29 29 29 32 33 34 ...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #49:
score: 0
Accepted
time: 8ms
memory: 1360kb
input:
1000 1 1 1 3 4 5 6 6 8 9 10 10 12 12 14 15 16 17 18 19 20 21 22 23 24 25 26 26 28 29 30 30 31 33 34 ...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #50:
score: 0
Accepted
time: 7ms
memory: 1360kb
input:
1000 1 1 2 3 4 4 6 7 8 9 9 11 12 13 13 15 16 16 18 19 20 20 21 22 23 24 26 26 27 28 30 31 32 32 34 3...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #51:
score: 0
Accepted
time: 8ms
memory: 1352kb
input:
1000 1 1 2 3 4 3 6 6 8 9 10 10 12 12 14 15 16 17 18 18 20 21 21 23 24 24 26 25 28 29 30 31 31 33 34 ...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #52:
score: 0
Accepted
time: 8ms
memory: 1356kb
input:
1000 1 1 2 2 4 5 6 7 8 7 9 11 12 12 14 15 15 17 17 18 20 21 22 22 24 25 26 27 28 28 29 31 31 32 34 3...
output:
POSSIBLE
result:
ok single line: 'POSSIBLE'
Test #53:
score: 0
Accepted
time: 8ms
memory: 1352kb
input:
1000 1 1 2 2 4 5 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 20 21 23 24 24 26 26 27 29 30 31 32 32 34 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #54:
score: 0
Accepted
time: 7ms
memory: 1356kb
input:
1000 1 1 2 3 4 5 6 7 8 8 10 11 11 13 14 15 15 17 17 19 20 21 22 23 24 24 25 27 28 28 30 31 31 32 33 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #55:
score: 0
Accepted
time: 7ms
memory: 1356kb
input:
1000 1 1 1 3 4 4 5 7 7 9 10 11 12 13 13 15 16 15 17 19 18 21 21 22 23 25 26 27 28 29 30 31 32 32 34 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #56:
score: 0
Accepted
time: 7ms
memory: 1356kb
input:
1000 1 1 1 2 3 5 5 7 8 9 9 10 12 13 14 15 16 16 18 18 19 19 22 22 23 24 26 26 26 28 30 30 32 32 33 3...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #57:
score: 0
Accepted
time: 7ms
memory: 1360kb
input:
1000 1 1 1 3 3 5 6 7 8 8 10 11 11 12 12 15 16 17 18 19 20 20 22 22 23 25 25 25 27 28 30 31 32 33 34 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #58:
score: 0
Accepted
time: 3ms
memory: 1356kb
input:
1000 1 1 2 3 4 4 5 6 8 8 8 11 11 13 14 15 16 17 18 18 20 20 22 23 24 25 25 27 28 29 29 30 31 33 34 3...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #59:
score: 0
Accepted
time: 4ms
memory: 1356kb
input:
1000 1 1 2 3 3 5 5 6 7 9 10 11 11 12 14 15 16 16 18 18 19 21 22 21 23 24 26 27 26 29 30 31 32 32 34 ...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'
Test #60:
score: 0
Accepted
time: 0ms
memory: 1360kb
input:
1000 1 1 1 3 3 4 6 7 8 8 9 11 12 13 14 15 16 17 18 19 20 21 22 23 23 25 25 27 28 29 30 30 31 33 33 3...
output:
IMPOSSIBLE
result:
ok single line: 'IMPOSSIBLE'