Submission #67317606

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
const int N=5e5+10;
#define int long long
void slove(){
	int n,m;
	cin>>n;
	string s[n+1];
	map<string,int> mp;
	for(int i=1;i<=n;i++){
		cin>>s[i];
	}
	string st;
	int coun=0;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			if(i==j) continue;
			st=s[i]+s[j];
			if(mp[st]==0){
			    coun++;
			    mp[st]=1;
			}
		}
	}
	cout<<coun<<endl;
}
signed main(){
	int t=1;
//	cin>>t;
	while(t--){
		slove();
	}
}  

Submission Info

Compile Error

Main.cpp: In function ‘void slove()’:
Main.cpp:6:15: warning: unused variable ‘m’ [-Wunused-variable]
    6 |         int n,m;
      |               ^

Judge Result