oj.uz

답안 #930623

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
930623 2024-02-20T08:25:31 Z yeehaw 세 명의 친구들 (BOI14_friends) C++17
0 / 100
 46 ms 5340 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")

int32_t main(){
    ios::sync_with_stdio(0);cin.tie(0);
    int n;cin>>n;
    char a[n];
    for(int i=0;i<n;i++)cin>>a[i];
    if(n%2==0){
        cout<<"NOT POSSIBLE";
        return 0;
    }
    int in=n/2,c=0,co=2,s=1,f=1;
    for(int i=0;i<n/2;i++){
        if(a[i]==a[i+in+c]);
        else{
            i--;
            if(c==1){
                f=0;
                co--;
                break;
            }c++;
        }
    }
    in++;c=0;
    for(int i=0;i<n/2;i++){
        if(a[i+c]==a[i+in]);
        else{
            i--;
            if(c==1){
                s=0;
                co--;
                break;
            }c++;
        }
    }
    if(co==2)cout<<"NOT UNIQUE";
    else if(co==0)cout<<"NOT POSSIBLE";
    else{
        if(s){
            c=0;
            for(int i=0;i<n/2;i++){
                if(a[i+c]==a[i+n/2+1])cout<<a[i+c];
                else {i--;c++;}
            }
        }else{
            c=0;
            for(int i=0;i<n/2;i++){
                if(a[i]==a[i+n/2+1+c])cout<<a[i];
                else {i--;c++;}
            }
        }
    }
}

Compilation message

friends.cpp: In function 'int32_t main()':
friends.cpp:16:29: warning: variable 'f' set but not used [-Wunused-but-set-variable]
   16 |     int in=n/2,c=0,co=2,s=1,f=1;
      |                             ^

Subtask #1
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 5268 KB Output is correct
2 Correct 36 ms 5340 KB Output is correct
3 Correct 35 ms 5336 KB Output is correct
4 Correct 35 ms 5204 KB Output is correct
5 Correct 35 ms 5268 KB Output is correct
6 Correct 18 ms 4176 KB Output is correct
7 Incorrect 18 ms 4296 KB Output isn't correct
8 Halted 0 ms 0 KB -