QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#162352 | #5981. Costly Binary Search | grass8cow | 27 ✓ | 28831ms | 83452kb | C++14 | 786b | 2023-09-03 10:50:26 | 2023-09-03 10:50:27 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int n,tl[1010000][10],tr[1010000][10];
char c[1000100];
void sol(int st){
scanf("%s",c+1);n=strlen(c+1);
for(int i=1;i<=n;i++)for(int j=0;j<10;j++)tl[i][j]=-n-1,tr[i][j]=n+1;
int step=0,oo=0;
while(tl[1][oo]<n){
step++;oo=(oo+9)%10;
for(int i=1;i<=n;i++){
int e=c[i]-'0';
if(e>step)continue;int k=((e-step)%10+10)%10;
int L=((i==1)?i:tr[i-1][k]),R=((i==n)?i:(tl[i+1][k]));
L=min(L,i),R=max(R,i);
if(L<=R)tl[L][oo]=max(tl[L][oo],R),tr[R][oo]=min(tr[R][oo],L);
}
for(int i=2;i<=n;i++)tl[i][oo]=max(tl[i][oo],tl[i-1][oo]);
for(int i=n-1;i;i--)tr[i][oo]=min(tr[i][oo],tr[i+1][oo]);
}
printf("Case #%d: %d\n",st,step);
}
int main(){
int T;cin>>T;for(int i=1;i<=T;i++)sol(i);
return 0;
}
Details
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Subtask #1:
score: 8
Accepted
Test #1:
score: 8
Accepted
time: 99ms
memory: 7720kb
input:
50 8 5128831164925953487661279378526736416489768154389124821528467927357884749642747626797857463132866343496157991453139582295398452863172464853698678624523849653538713928372648295734165346972222781179687541337591976277864785653638476127839556323849395641196246971351933655287441377531627938395427487...
output:
Case #1: 8 Case #2: 37 Case #3: 34 Case #4: 37 Case #5: 34 Case #6: 114 Case #7: 126 Case #8: 24 Case #9: 37 Case #10: 103 Case #11: 36 Case #12: 64 Case #13: 37 Case #14: 117 Case #15: 37 Case #16: 35 Case #17: 14 Case #18: 34 Case #19: 36 Case #20: 37 Case #21: 38 Case #22: 39 Case #23: 14 Case #2...
result:
ok 50 lines
Subtask #2:
score: 19
Accepted
Test #2:
score: 19
Accepted
time: 28831ms
memory: 83452kb
input:
50 647322722753778843259213887674615134214258235986992692879314555957455541351526284343217116351733247781713552149464672262787737941588358671583528664757823365936975517145283412965139791726299864122725212222496898855627124979178341548651669956711341742838725446489235961853391195148929571712449139335...
output:
Case #1: 42 Case #2: 43 Case #3: 120 Case #4: 42 Case #5: 43 Case #6: 43 Case #7: 31 Case #8: 43 Case #9: 171 Case #10: 42 Case #11: 39 Case #12: 42 Case #13: 42 Case #14: 44 Case #15: 39 Case #16: 20 Case #17: 180 Case #18: 30 Case #19: 45 Case #20: 43 Case #21: 44 Case #22: 31 Case #23: 83 Case #2...
result:
ok 50 lines
Extra Test:
score: 0
Extra Test Passed