GYM - 3

#include <iostream>
#include <vector>
#include <cmath>
#include <valarray>
using namespace std;
ostream & operator<<(ostream & out, vector<long long int> const & v)
{
    for (int el:v)
        out<<el<<" ";
    return out;
}
int summall(vector<long long int> v)
{
    int summ=0;
    int i;
    for (i=0;i<v.size();++i)
        summ+=v[i];
    return summ;
}
int main()
{
    long long int summ1,k,n,i,j,m,ma,c,o;
    cin >> n >> m;
    vector < vector<long long int>> a(n, vector<long long int>(m));
    vector<long long int> q;
    ma=0;
    k=0;
    o=0;
    c=0;
    for (i=0;i<n;++i)
        for(j=0;j<m;++j){
            cin >> a[i][j];
            if (a[i][j]>ma){
                ma=a[i][j];
                o=i;
            }
        }
    for (i=0;i<n;++i){
        for (j=0;j<m;++j)
        {
            if ((k>=1) & (a[i][j]==ma))
            {
                    q=a[i];
                    if (summall(q)>summ1)
                    {
                        summ1=summall(a[i]);
                        o=i;
                    }
            }
            if ((a[i][j]==ma) & (k==0))
            {
                ++k;
                summ1=summall(a[i]);
            }
        }
    }
    cout<<o<<endl;
    return 0;
}