Submission #112585

#	Time	Username	Problem	Language	Result	Execution time	Memory
112585		ioilolcom	Igra (COCI17_igra)	C++14	20 / 100	2 ms	384 KiB

igra

#include <bits/stdc++.h>
using namespace std;
#define endl "\n"
typedef long long int ll;
int pi[4],u[4];
bool check(){
	return (u[1]+u[2]>=pi[0])&&(u[2]+u[0]>=pi[1])&&(u[1]+u[0]>=pi[2]);
}
int main()
{

	ios_base:: sync_with_stdio(false); cin.tie(0);
	int n; cin>>n;
	string a,b;
	string ans="";
	cin>>a>>b;
	for(int i=0; i<n; i++) {
		u[a[i]-'a']++;
		pi[b[i]-'a']++;
	}
	//
	//string ans="";
// how can i know if a solution exist if i take a char a
	//cout<<u[0]<<" "<<u[1]<<" "<<u[2]<<endl;
	for(int i=0; i<n; i++) {
		for(int j=0; j<3; j++) {
			if(j!=b[i]-'a') {
				if(u[j]) {
					u[j]--;
					pi[b[i]-'a']--;

					if(!check()) {
						u[j]++; pi[a[i]-'a']++;
						continue;
					}

					ans+=(char)(j+'a');
					break;
				}
			}
		}

	}
	cout<<ans<<endl;
	return 0;
}

• Subtask 1: 20 / 100