oj.uz

답안 #120211

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
120211 2019-06-24T00:57:07 Z errorgorn JOIOJI (JOI14_joioji) C++14
100 / 100
 48 ms 6288 KB 
    #include <cstdio>
    #include <map>
    #include <utility>
    #include <string>
    #include <iostream>
    #include <cstring>
    #include <algorithm>
    using namespace std;
    typedef pair<int,int> ii;
    int n;
    char c;
 	string s;
   	map<ii,int> suffix;
    int arr[3];
    int pre[3];
    int main(){
        //freopen("input.txt","r",stdin);
        scanf("%d",&n);
        getchar();
        c=getchar();
        while (c!='\n'){
            s+=c;
            if (c=='J') arr[0]++;
            else if (c=='O') arr[1]++;
            else arr[2]++;
            c=getchar();
        }
        suffix[ii(0,0)]=0;
        for (int x=0;x<3;x++) pre[x]=arr[x];
        for (int x=0;x<s.size();x++){
            if (s[x]=='J') pre[0]--;
            else if (s[x]=='O') pre[1]--;
            else pre[2]--;
            suffix[ii(pre[0]-pre[1],pre[0]-pre[2])]=x+1;
        }
        memset(pre,0,sizeof(pre));
        int ans=0;
        int a=arr[0]-arr[1],b=arr[0]-arr[2];
        for (int x=0;x<s.size();x++){
            ans=max(ans,suffix[ii(a-(pre[0]-pre[1]),b-(pre[0]-pre[2]))]-x);
            if (s[x]=='J') pre[0]++;
            else if (s[x]=='O') pre[1]++;
            else pre[2]++;
        }
        printf("%d\n",ans);
    }

Compilation message

joioji.cpp: In function 'int main()':
joioji.cpp:30:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int x=0;x<s.size();x++){
                      ~^~~~~~~~~
joioji.cpp:39:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int x=0;x<s.size();x++){
                      ~^~~~~~~~~
joioji.cpp:18:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&n);
         ~~~~~^~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 256 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 2 ms 256 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 356 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 428 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 512 KB Output is correct

Subtask #3
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 8 ms 1024 KB Output is correct
3 Correct 13 ms 1408 KB Output is correct
4 Correct 24 ms 2308 KB Output is correct
5 Correct 36 ms 3472 KB Output is correct
6 Correct 45 ms 3600 KB Output is correct
7 Correct 44 ms 4104 KB Output is correct
8 Correct 43 ms 3592 KB Output is correct
9 Correct 48 ms 3852 KB Output is correct
10 Correct 43 ms 3720 KB Output is correct
11 Correct 36 ms 5384 KB Output is correct
12 Correct 30 ms 2320 KB Output is correct
13 Correct 23 ms 1680 KB Output is correct
14 Correct 41 ms 6288 KB Output is correct
15 Correct 24 ms 1296 KB Output is correct