Cod sursa(job #2873161)
Utilizator | Data | 18 martie 2022 19:18:48 | |
---|---|---|---|
Problema | Elementul majoritar | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.93 kb |
#include <fstream>
using namespace std;
ifstream cin("elmaj.in");
ofstream cout("elmaj.out");
int n,a[1000001],i,nr1,x;
int elmaj(int n,int a[])
{
int cand=-1,nr=0,nr1=0,i;
for(i=0; i<n; i++)
{
if(nr==0)
{
cand=a[i];
nr=1;
}
else if(a[i]==cand)
{
nr++;
}
else
nr--;
}
for( i=0; i<=n; i++)
{
if(a[i]==cand)
nr1++;
}
if(nr1>n/2)
{
return cand;
}
else
{
return -1;
}
}
int main()
{
cin >>n;
for(i=0; i<n; i++)
{
cin >>a[i];
}
if(elmaj(n,a)==-1)
{
cout <<-1;
}
else
{
x=elmaj(n,a);
cout <<x<<' ';
for(i=0; i<n; i++)
{
if(a[i]==x)
nr1++;
}
cout <<nr1;
}
return 0;
}