NOI.AC
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #192650 | #2037. a | wosile | 100 | 5871ms | 205284kb | C++11 | 1.1kb | 2023-10-10 08:30:52 | 2023-10-10 12:33:14 |
answer
#include<bits/stdc++.h>
using namespace std;
char s[1000005];
int a[1000005],b[1000005];
int ma[1000005][25],mb[1000005][25];
int n,q;
int getma(int l,int r){
int mn=0x3f3f3f3f;
for(int i=20;i>=0;i--)if(l+(1<<i)-1<=r){
mn=min(mn,ma[l][i]);
l+=(1<<i);
}
return mn;
}
int getmb(int l,int r){
int mn=0x3f3f3f3f;
for(int i=20;i>=0;i--)if(l+(1<<i)-1<=r){
mn=min(mn,mb[l][i]);
l+=(1<<i);
}
return mn;
}
int main(){
scanf("%s",s+1);
n=strlen(s+1);
for(int i=1;i<=n;i++)a[i]=a[i-1]+(s[i]=='('?1:-1);
for(int i=n;i>=1;i--)b[i]=b[i+1]+(s[i]==')'?1:-1);
// for(int i=1;i<=n;i++)printf("%d ",b[i]);printf("\n");
for(int i=0;i<=n+1;i++)ma[i][0]=a[i],mb[i][0]=b[i];
for(int j=1;j<=20;j++)for(int i=0;i+(1<<j)-1<=n+1;i++)ma[i][j]=min(ma[i][j-1],ma[i+(1<<(j-1))][j-1]),mb[i][j]=min(mb[i][j-1],mb[i+(1<<(j-1))][j-1]);
scanf("%d",&q);
while(q--){
int l,r;
scanf("%d%d",&l,&r);
printf("%d\n",r-l+1-(a[l-1]-getma(l-1,r))-(b[r+1]-getmb(l,r+1)));
// printf("%d %d %d %d\n",a[l-1],getma(l-1,r),b[r+1],getmb(l,r+1));
}
return 0;
}
/*
())(())(())(
4
1 12
8 12
5 11
2 10
*/
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: 1400kb
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: 0ms
memory: 1400kb
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: 0ms
memory: 1400kb
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: 0ms
memory: 1404kb
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: 0ms
memory: 1400kb
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: 0ms
memory: 1400kb
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: 10
Accepted
time: 1386ms
memory: 205284kb
input:
((((()))()()())(()))((()())(((())))(()((()))))))()()))()))((((()(()(()()()(()(())(()())))(((()())))(...
output:
142860 235344 446706 759772 134088 748980 83870 685562 31730 572204 366368 67746 18554 603330 946486...
result:
ok 1000000 lines
Test #8:
score: 10
Accepted
time: 1363ms
memory: 205284kb
input:
())))()))))(()))()())(()(()))((()))))(()))((())()((()(()()((())(())()))(()))))())(((()(())()(())()()...
output:
583148 425884 255036 448502 200322 256890 167684 114904 55236 440164 138094 879918 580038 452166 984...
result:
ok 1000000 lines
Test #9:
score: 10
Accepted
time: 1768ms
memory: 205284kb
input:
)()((()())(())())(()())))(((()())()()(((((()(()()(()(())(()())((()(((()()))()))))()(((())(((((()()()...
output:
47942 241400 323510 553980 111490 20570 51892 169422 82080 124416 107806 804528 123414 274334 135650...
result:
ok 1000000 lines
Test #10:
score: 10
Accepted
time: 1354ms
memory: 205284kb
input:
())()()(()())))())())))))))(()((()()(((()))(()(())))(())))())(()((()))()))(()))()((((((())(())(())((...
output:
487878 425694 419984 176404 493462 782462 63276 27548 109942 308166 354282 302574 697816 3128 144748...
result:
ok 1000000 lines
