Cod sursa(job #1464240)

Utilizator tony.hegyesAntonius Cezar Hegyes tony.hegyes Data 22 iulie 2015 18:09:35
Problema Elementul majoritar Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.66 kb
#include <fstream>
using namespace std;

///// DESCRIPTION
// THIS PROGRAM FINDS THE MAJORITY
// ELEMENT FROM A VECTOR OF N ELEMENTS 
// MAJ EL = APPEARS AT LEAST (N/2) + 1 TIMES
/////

int main(int argc, char **argv)
{
	// INPUT
	int n;
	ifstream indata("elmaj.in");
	indata >> n;	
	indata.close();

	int freq[n + 1];
	for (int i = 1; i <= n; i++) {
		freq[i] = 0;
	}
	for (int i = 0, aux; i < n; i++) {
		indata >> aux;
		freq[aux]++;
	}
	
	// FIND A MAJORITY ELEMENT AND OUTPUT IT
	ofstream outdata("elmaj.out");
	for (int i = 1, l = (n / 2) + 1; i <= n; i++) {
		if (freq[i] >= l) {
			outdata << i << " " << freq[i];
			break;
		}
	}
	outdata.close();

	return 0;
}