Cod sursa(job #2547557)

Utilizator OvidRata Ovidiu Ovid Data 15 februarie 2020 14:17:43
Problema Elementul majoritar Scor 50
Compilator cpp-64 Status done
Runda Teme Pregatire ACM Unibuc 2013 Marime 0.42 kb
#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
ifstream fin("elmaj.in"); ofstream fout("elmaj.out");


int n;
vector<int> a;
map<int, int> e;



int main(){
fin>>n;
int o=0, el=0;

a.resize(n+5);

for(int i=0; i<n; i++){
    fin>>a[i];
    e[a[i] ]++;
    int c=e[a[i] ];
    if(c>o){el=a[i]; o=c;}


if(o>n/2){
fout<<el<<" "<<o; return 0;}
}



fout<<-1;



return 0;
}