My code for "the new president" problem on code forces get WA

#include<bits/stdc++.h>
using namespace std;
int main( )
{
    //int t;
    //cin>>t;
    //while(t--)
    //{
        int c,v,arr[109][109],d[109]={0};
        int x=0; bool check=false; int a=0,b=0;
        int aa=0,bb=0;
        cin>>c>>v;
        for(int i=0 ; i<v; i++)
        {
            for(int j=0 ; j<c ; j++)
            {
                cin>>arr[i][j];
            }
        }

        for(int j=0 ; j<v ; j++)
        {
            d[arr[j][0]]++;
        }

        for(int j=1 ; j<=c ; j++)
        {
            x=max(d[j],x);
            if(d[j]==x && check==false)
            {a=j; aa=d[j]; check=true;}
            else if(d[j]==x && check==true)
            {b=j; bb=d[j]; check=false;}
        }

        //cout<<aa<<"  "<<bb<< "    " <<a <<"  "<<b<<endl;
        if(aa>bb && aa>floor(.5*v))
            {cout<<a<<" 1"<<endl; return 0;}
        else if(bb>aa && bb>floor(.5*v))
            {cout<<b<<" 1"<<endl; return 0;}
        else
        {
            int r=1;
            while(true)
            {
                 aa=0; bb=0;
                for(int j=0 ; j<v ; j++)
                {
                    if(arr[j][r]==a)
                        aa++;
                    else if(arr[j][r]==b)
                        bb++;
                }
                //cout<<aa<<"  "<<bb<< "    " <<a <<"  "<<b<<endl;
                if(aa>bb)
                    {cout<<a<<" 2"<<endl; return 0;}
                else if(bb>aa)
                    {cout<<b<<" 2"<<endl; return 0;}
                r++;
            }
        }
    //}
    return 0;
}