제출 #254841

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
254841		Molukhyyeh	Zamjena (COCI18_zamjena)	C++14	70 / 70	226 ms	25980 KiB

zamjena

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define all(x) x.begin(),x.end() 

int const N = 200001;
int n, a[N], b[N], have;
string x[N], y[N];
map<string, int> mp, vs;
map<string, vector<string> > g;

void go(string cur){
     vs[cur] = true;
     if(cur[0]-'0' >= 0 && cur[0]-'0' <= 9)++have;
     if(have > 1){puts("NE"); exit(0);}
     for(auto i: g[cur]){
         if(vs[i])continue;
         go(i);
     }
}

int main(){
    scanf("%d", &n);
    for(int i = 0; i<n; ++i){
        cin >> x[i];
        if(x[i][0]-'0' >= 0 && x[i][0]-'0' <= 9){
            stringstream ss; 
            ss << x[i];
            ss >> a[i];
        }
        else a[i] = -1;
    }
    for(int i = 0; i<n; ++i){
        cin >> y[i];
        if(y[i][0]-'0' >= 0 && y[i][0]-'0' <= 9){
            stringstream ss; 
            ss << y[i];
            ss >> b[i];
        }
        else b[i] = -1;
    }
    for(int i = 0; i<n; ++i){
       g[x[i]].push_back(y[i]);
       g[y[i]].push_back(x[i]);
    }
    for(int i = 0; i<n; ++i){
       have = 0;
       if(!vs[x[i]])go(x[i]);
    }
    puts("DA");
}

컴파일 시 표준 에러 (stderr) 메시지

zamjena.cpp: In function 'int main()':
zamjena.cpp:23:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 14 / 14
• Subtask 5: 14 / 14