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NOI.AC

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#215238#2726. 8.3t4ThySecret60555ms118760kbC++111.6kb2024-11-27 19:49:162024-11-27 23:37:04

answer

#include <bits/stdc++.h>

using namespace std;

// #define int long long
// #define x first
// #define y second
#define File(a) freopen(a".in", "r", stdin), freopen(a".out", "w", stdout)

inline void debug() { cerr << '\n'; }
template<typename Type, typename... Other>
inline void debug(const Type& x, const Other&... y) { cerr << x << ' '; debug(y...); }
#define DEBUG(a...) cerr << "[" << #a << "] = ", debug(a);

typedef long long LL;
typedef pair<int, int> PII;

const int N = 100010, M = 320;
const int INF = 0x3f3f3f3f;

template<typename Type>
inline void read(Type &res)
{
    res = 0;
    int ch = getchar(), flag = 0;
    while (!isdigit(ch)) flag |= ch == '-', ch = getchar();
    while (isdigit(ch)) res = (res << 3) + (res << 1) + (ch ^ 48), ch = getchar();
    res = flag ? -res : res;
}
template<typename Type, typename... Other>
inline void read(Type &res, Other&... y) { read(res), read(y...); }

int n, q;
int a[N], f[M][N];

signed main()
{
    read(n);
    for (int i = 1; i <= n; i ++) read(a[i]);
    for (int k = 1; k <= 300; k ++)
        for (int i = n; i >= 1; i --)
        {
            if (i + a[i] + k > n) f[k][i] = 1;
            else f[k][i] = f[k][i + a[i] + k] + 1;
        }

    read(q);
    while (q --)
    {
        int pos, k; read(pos, k);
        if (k <= 300) cout << f[k][pos] << '\n';
        else
        {
            int ans = 0;
            for (int cur = pos; cur <= n; cur = cur + a[cur] + k)
                ans ++;
            cout << ans << '\n';
        }
    }

    return 0;
}

Details

小提示:点击横条可展开更详细的信息

Test #1:

score: 10
Accepted
time: 0ms
memory: 2544kb

input:

100
5 6 12 22 23 21 22 7 30 5 22 22 29 30 30 10 7 17 25 24 1 16 17 30 3 19 7 27 14 20 28 5 22 23 13 ...

output:

3
7
5
3
2
2
3
4
3
3
4
3
3
4
5
4
2
5
2
5
5
3
4
5
3
3
4
5
4
2
2
2
4
3
2
6
2
5
3
4
2
3
3
2
2
3
2
2
3
3
...

result:

ok 100 lines

Test #2:

score: 0
Wrong Answer
time: 55ms
memory: 118756kb

input:

100000
25 29 13 9 17 27 2 5 20 4 27 25 5 24 17 13 13 14 3 13 4 24 19 9 21 20 14 17 9 11 13 9 5 24 20...

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...

result:

wrong answer 1st lines differ - expected: '6391', found: '0'

Test #3:

score: 0
Wrong Answer
time: 63ms
memory: 118760kb

input:

100000
16 18 28 7 16 2 30 19 30 28 17 8 8 16 16 3 11 19 29 7 9 27 6 27 27 28 29 3 18 27 5 29 14 15 2...

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...

result:

wrong answer 1st lines differ - expected: '6477', found: '0'

Test #4:

score: 0
Wrong Answer
time: 59ms
memory: 118756kb

input:

100000
29 30 15 26 1 29 1 4 12 22 12 4 9 27 20 29 21 8 29 27 11 5 13 7 20 15 5 15 10 1 30 28 10 30 3...

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...

result:

wrong answer 1st lines differ - expected: '6475', found: '0'

Test #5:

score: 0
Wrong Answer
time: 59ms
memory: 118760kb

input:

100000
30 25 29 4 13 25 14 15 21 20 8 4 17 16 13 8 10 17 21 10 14 13 9 26 28 14 28 13 29 10 28 2 3 1...

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...

result:

wrong answer 1st lines differ - expected: '6484', found: '0'

Test #6:

score: 10
Accepted
time: 62ms
memory: 118760kb

input:

100000
3 1 9 1 7 6 10 9 5 10 6 5 5 8 2 8 10 1 9 4 4 3 6 3 1 9 5 2 7 8 1 3 8 6 1 8 3 1 1 10 8 4 2 8 5...

output:

15308
13281
11724
10574
9488
8665
8036
7431
6893
6485
6049
5722
5409
5128
4872
4655
4441
4242
4085
3...

result:

ok 100000 lines

Test #7:

score: 10
Accepted
time: 64ms
memory: 118756kb

input:

100000
19 6 20 1 19 14 23 14 23 3 9 1 14 19 22 21 4 26 2 20 16 9 27 20 23 2 19 5 13 18 6 11 17 13 9 ...

output:

6114
5717
5377
5141
4930
4672
4418
4263
4061
3903
3782
3655
3495
3376
3278
3161
3065
2986
2897
2793
...

result:

ok 100000 lines

Test #8:

score: 10
Accepted
time: 59ms
memory: 118760kb

input:

100000
3 16 18 2 10 29 27 26 12 11 15 12 29 16 2 8 14 4 28 13 21 13 2 24 4 9 16 14 4 27 27 15 18 13 ...

output:

6080
5669
5408
5099
4853
4700
4382
4228
4073
3908
3757
3632
3491
3369
3273
3181
3049
2989
2913
2818
...

result:

ok 100000 lines

Test #9:

score: 10
Accepted
time: 71ms
memory: 118760kb

input:

100000
82 65 27 36 67 74 9 74 35 72 97 28 57 78 88 66 89 20 30 50 2 1 19 8 97 4 47 37 6 73 22 31 64 ...

output:

1926
1906
1818
1831
1806
1746
1765
1700
1691
1623
1624
1621
1575
1549
1524
1505
1442
1471
1430
1424
...

result:

ok 100000 lines

Test #10:

score: 10
Accepted
time: 63ms
memory: 118756kb

input:

100000
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:

50000
33333
25000
20000
16667
14286
12500
11112
10000
9091
8334
7693
7143
6667
6250
5883
5556
5264
5...

result:

ok 100000 lines