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 |
---|---|---|---|---|---|---|---|---|---|
#199532 | #3464. Mex问题 | Williamtank | 100 | 7927ms | 28544kb | C++ | 1.7kb | 2023-12-17 09:57:09 | 2023-12-17 12:15:18 |
answer
#include<bits/stdc++.h>
using namespace std;
int n,m,q;
const int N = 1e6;
struct Segment_tree
{
int a[N + 5];
int cnt;
struct node
{
int mn;
int lson,rson;
}tree[2 * N + 5];
void push_up(int k1)
{
tree[k1].mn = min(tree[tree[k1].lson].mn,tree[tree[k1].rson].mn);
}
void build_tree(int &k1,int l,int r)
{
k1 = ++cnt;
if(l == r)
{
tree[k1].mn = a[l];
return;
}
int mid = (l + r) / 2;
build_tree(tree[k1].lson,l,mid);
build_tree(tree[k1].rson,mid + 1,r);
push_up(k1);
}
void update(int k1,int l,int r,int x,int k)
{
if(l == r)
{
tree[k1].mn = k;
return;
}
int mid = (l + r) >> 1;
if(x <= mid) update(tree[k1].lson,l,mid,x,k);
else update(tree[k1].rson,mid + 1,r,x,k);
push_up(k1);
}
int query(int k1,int l,int r,int x,int y)
{
if(x <= l && r <= y) return tree[k1].mn;
int mid = (l + r) >> 1;
int ans = 1 << 30;
if(x <= mid) ans = min(ans,query(tree[k1].lson,l,mid,x,y));
if(y > mid) ans = min(ans,query(tree[k1].rson,mid + 1,r,x,y));
return ans;
}
}t;
signed main()
{
scanf("%d%d",&n,&m);
for(int i = 1;i <= n;i++) scanf("%d",&t.a[i]);
t.build_tree(t.tree[0].lson,1,n);
for(int i = 1;i <= m;i++)
{
int opt;
scanf("%d",&opt);
if(opt == 1)
{
int x,y;
scanf("%d%d",&x,&y);
t.update(1,1,n,x,t.a[y]);
t.update(1,1,n,y,t.a[x]);
swap(t.a[x],t.a[y]);
}
else
{
int x,y;
scanf("%d%d",&x,&y);
int ans = 1 << 30;
if(x > 1) ans = min(ans,t.query(1,1,n,1,x - 1));
if(y < n) ans = min(ans,t.query(1,1,n,y + 1,n));
if(ans == (1 << 30)) printf("%d\n",n);
else printf("%d\n",ans);
}
}
return 0;
}
详细
小提示:点击横条可展开更详细的信息
Test #1:
score: 10
Accepted
time: 1ms
memory: 1236kb
input:
1000 1000 766 551 229 619 16 792 855 602 918 959 379 858 777 503 252 449 473 238 359 703 930 874 444...
output:
211 382 766 211 1000 551 16 47 766 551 1000 551 382 766 229 211 551 551 1000 551 766 766 211 1000 55...
result:
ok 473 lines
Test #2:
score: 10
Accepted
time: 0ms
memory: 1236kb
input:
1000 1000 979 835 871 109 874 446 706 581 33 808 267 662 295 702 793 375 127 938 338 340 352 431 539...
output:
835 835 109 482 482 547 547 9 517 835 517 109 547 547 517 835 547 517 4 547 547 547 4 547 4 547 547 ...
result:
ok 500 lines
Test #3:
score: 10
Accepted
time: 0ms
memory: 1240kb
input:
1000 1000 152 958 925 477 38 77 289 947 154 490 267 914 814 993 374 858 450 692 792 899 316 115 341 ...
output:
502 1000 152 1000 502 1000 1000 38 152 1000 502 672 1000 1000 502 502 1000 1000 1000 672 672 672 100...
result:
ok 516 lines
Test #4:
score: 10
Accepted
time: 1313ms
memory: 28540kb
input:
1000000 1000000 416632 951954 346607 668902 615191 265616 312582 30395 835755 866377 515388 538995 6...
output:
0 0 0 0 1 0 0 1 0 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 0 0 0 0 0 ...
result:
ok 499975 lines
Test #5:
score: 10
Accepted
time: 1341ms
memory: 28540kb
input:
1000000 1000000 108748 877565 196157 720468 129802 600075 317321 799786 665963 638373 510469 901108 ...
output:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 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 1 0 0 0 0 0 1 1 6 ...
result:
ok 499969 lines
Test #6:
score: 10
Accepted
time: 1393ms
memory: 28540kb
input:
1000000 1000000 812407 150933 396889 408364 72596 793626 731766 831633 169527 521479 50208 950746 47...
output:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 7 0 1 0 2 0 7 0 0 3 ...
result:
ok 499952 lines
Test #7:
score: 10
Accepted
time: 936ms
memory: 28540kb
input:
999998 1000000 496742 1903 386521 847417 168428 380343 791167 240576 271414 613096 192711 723079 497...
output:
496742 496742 846822 846822 496742 846822 496742 846822 496742 846822 496742 846822 496742 999998 99...
result:
ok 499556 lines
Test #8:
score: 10
Accepted
time: 983ms
memory: 28544kb
input:
1000000 1000000 137393 664239 178477 745998 955585 221661 631802 12887 408835 943141 907351 214221 3...
output:
1000000 1000000 137393 1000000 1000000 1000000 1000000 1000000 1000000 1000000 1000000 1000000 10000...
result:
ok 500201 lines
Test #9:
score: 10
Accepted
time: 982ms
memory: 28544kb
input:
999998 1000000 487858 189435 425747 744974 571986 20129 489577 661897 906159 864589 145564 153617 27...
output:
999998 189435 999998 487858 999998 189435 487858 999998 999998 189435 189435 999998 999998 999998 99...
result:
ok 499608 lines
Test #10:
score: 10
Accepted
time: 978ms
memory: 28540kb
input:
999999 1000000 178622 257725 504698 723327 640246 10648 929245 508226 572943 464286 88720 809444 889...
output:
999999 759507 178622 178622 178622 759507 759507 178622 999999 759507 759507 759507 759507 759507 75...
result:
ok 499620 lines
Extra Test:
score: 0
Extra Test Passed