NOI.AC
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #214996 | #2037. a | yiwei | 60 | 20ms | 1252kb | C++11 | 658b | 2024-11-25 19:34:53 | 2024-11-25 23:04:20 |
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 1e6 + 5;
char s[N];
int n;
int s1[N],s2[N],s3[N];
int main(){
scanf("%s",s + 1); n = strlen(s + 1);
for (int i = 1;i <= n;i++){
s1[i] = s1[i - 1] + (s[i] == '(');
s2[i] = s2[i - 1] + (s[i] == ')');
}
int q; cin >> q;
while (q--){
int l,r; cin >> l >> r;
int t = 0;
int ans = s2[r] - s2[l - 1];
for (int i = l;i <= r;i++){
if (s[i] == '(') t++;
else{
if (t) t--;
else ans--;
}
}
cout << ans * 2 << '\n';
}
}
Details
小提示：点击横条可展开更详细的信息
Test #1:
score: 10
Accepted
time: 1ms
memory: 1248kb
input:
(()))())))(())()())()()))((((()()))((((()((())()))(()((((()(())(())(()))())()())()())(())(()()((((((...
output:
854 136 108 12 836 206 550 252 536 266 220 344 830 502 170 290 522 526 464 98 160 10 840 298 332 272...
result:
ok 1000 lines
Test #2:
score: 10
Accepted
time: 3ms
memory: 1252kb
input:
)))((()())((())((()()())())(((())())((()((())(())()((((((())))((()(()())))(()()(())())()))(()()))(((...
output:
30 22 96 382 252 154 386 56 434 102 590 456 114 56 346 252 324 12 138 184 320 52 380 470 64 476 40 4...
result:
ok 1000 lines
Test #3:
score: 10
Accepted
time: 4ms
memory: 1248kb
input:
(()((())))))))((())(()()))()))()()())(()))(())))))))(((())((((((((((()((()())()(()(())(()())(()))(((...
output:
674 192 100 168 206 244 378 746 184 196 196 602 414 302 224 358 232 482 154 448 168 704 232 232 810 ...
result:
ok 1000 lines
Test #4:
score: 10
Accepted
time: 4ms
memory: 1252kb
input:
))))))))()))())()(()()())()())(((()())(((()(((()()))(()()()))())(()()(()()())()(())()())))))()((((()...
output:
168 378 240 380 548 324 54 492 724 276 184 398 66 452 404 192 192 594 192 128 918 424 516 46 108 430...
result:
ok 1000 lines
Test #5:
score: 10
Accepted
time: 2ms
memory: 1252kb
input:
((())))(()((()()))()))))((((()()()()()()()))()()(()(())(()((()))()((())))))()(((()())()))()())))(())...
output:
634 386 334 6 246 372 226 424 274 168 254 448 312 112 532 126 594 780 112 150 68 470 260 150 22 322 ...
result:
ok 1000 lines
Test #6:
score: 10
Accepted
time: 6ms
memory: 1252kb
input:
))((()))()(())())(()()))))()()((((()()())()((())(())))))(())))()())()()(())()(())())(()())))(()()))(...
output:
728 224 580 200 784 152 280 194 0 664 278 260 630 328 816 470 388 736 82 132 406 440 140 12 276 776 ...
result:
ok 1000 lines
Test #7:
score: 0
Time Limit Exceeded
input:
((((()))()()())(()))((()())(((())))(()((()))))))()()))()))((((()(()(()()()(()(())(()())))(((()())))(...
output:
142860 235344 446706 759772 134088 748980 83870 685562 31730 572204 366368 67746 18554 603330 946486...
result:
Test #8:
score: 0
Time Limit Exceeded
input:
())))()))))(()))()())(()(()))((()))))(()))((())()((()(()()((())(())()))(()))))())(((()(())()(())()()...
output:
583148 425884 255036 448502 200322 256890 167684 114904 55236 440164 138094 879918 580038 452166 984...
result:
Test #9:
score: 0
Time Limit Exceeded
input:
)()((()())(())())(()())))(((()())()()(((((()(()()(()(())(()())((()(((()()))()))))()(((())(((((()()()...
output:
47942 241400 323510 553980 111490 20570 51892 169422 82080 124416 107806 804528 123414 274334 135650...
result:
Test #10:
score: 0
Time Limit Exceeded
input:
())()()(()())))())())))))))(()((()()(((()))(()(())))(())))())(()((()))()))(()))()((((((())(())(())((...
output:
487878 425694 419984 176404 493462 782462 63276 27548 109942 308166 354282 302574 697816 3128 144748...
