QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#692252#9454. String of CCPCucup-team5217#AC ✓214ms4012kbC++231.3kb2024-10-31 14:12:102024-10-31 14:12:10

Judging History

你现在查看的是最新测评结果

  • [2024-10-31 14:12:10]
  • 评测
  • 测评结果:AC
  • 用时:214ms
  • 内存:4012kb
  • [2024-10-31 14:12:10]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

void solve(void) {
    int n;
    cin>>n;
    string s;
    cin>>s;
    int sz=s.size();int ans=0;
    for(int i=3;i<sz;i++){
        if(s.substr(i-3,4)=="CCPC") ans++;
    }
    int maxn=ans;
    auto get=[&](int x)->int {
        if(x<0||x+3>sz-1)   return 0;
        return s.substr(x,4)=="CCPC";
    };
    for(int i=0;i<=n;i++){
        int res=ans;
        for(int j=i-1;j>=i-3;j--){
            res-=get(j);
        }
        for(int j=i;j>=i-3;j--){
            if(j<0||j+2>sz-1)   continue;
            string w=s.substr(j,3);
            int lo=(i-j);
            w=w.substr(0,lo)+"P"+w.substr(lo);
            if(w=="CCPC")   res++;
        }
        maxn=max(maxn,res);
    }
    for(int i=0;i<=n;i++){
        int res=ans;
        for(int j=i-1;j>=i-3;j--){
            res-=get(j);
        }
        for(int j=i;j>=i-3;j--){
            if(j<0||j+2>sz-1)   continue;
            string w=s.substr(j,3);
            int lo=(i-j);
            w=w.substr(0,lo)+"C"+w.substr(lo);
            if(w=="CCPC")   res++;
        }
        maxn=max(maxn,res);
    }
    cout<<maxn<<'\n';
}

int main() {
    ios::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);

    int _ = 1;
    cin >> _;
    while (_--) solve();
    return 0;
}

这程序好像有点Bug,我给组数据试试?

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3548kb

input:

3
3
CCC
5
CCCCP
4
CPCP

output:

1
1
1

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 214ms
memory: 4012kb

input:

20003
5
PCCPC
10
CPPPPCPCPC
4
CPPC
11
CCPPCPPPCCP
17
PPPPCPCCCCCPCCCCC
10
PPCCPCPPCP
9
CPCCCCPPC
11
PCPPPPCCPPP
15
CPCPPPPCCPCPCCC
11
PCCPPCCPCPP
9
PCPCCPPCP
10
CCPCPPPCPP
14
CCCCPPPCPCPCPP
2
CC
12
CCPCPPPPPCPP
6
CPPPPP
12
PCCPCCCCCPCC
16
CPCCPCCPPCCCCPPC
7
CPPPCPC
16
PPPPPCCPCPCPCPPC
13
PPPCPCCCCPP...

output:

1
1
0
1
2
1
1
1
2
2
1
1
1
0
1
0
3
2
1
2
1
2
2
0
1
2
3
1
1
3
1
2
2
1
0
0
0
3
1
0
0
1
1
2
0
1
1
0
1
2
0
1
0
1
0
3
1
1
0
2
1
3
2
2
0
2
2
0
0
2
1
1
3
3
1
3
1
2
0
1
1
0
1
2
2
1
1
2
1
3
1
1
3
1
2
2
0
1
0
3
0
1
1
2
2
0
2
1
1
2
2
0
3
1
1
1
1
2
1
2
0
1
1
0
3
0
3
1
1
0
0
1
0
3
0
1
1
1
1
2
2
1
1
0
0
1
2
0
1
2
...

result:

ok 20003 lines

Extra Test:

score: 0
Extra Test Passed