Submission #717735

#	Time	Username	Problem	Language	Result	Execution time	Memory
717735		AndrijaM	Poi (IOI09_poi)	C++14	60 / 100	549 ms	32560 KiB

poi

#include <bits/stdc++.h>

using namespace std;

int main()
{
    long long n,t,p;
    cin>>n>>t>>p;
    long long cpt[t]={0};
    vector<long long>v[n];
    long long val[n];
    memset(val,0,sizeof val);
    vector<pair<long long,long long>>r;
    for(long long i=0;i<n;i++)
    {
        for(long long j=0;j<t;j++)
        {
            long long num;
            cin>>num;
            v[i].push_back(num);
            cpt[j]+=num;///lugje-cpt[j] treba
        }
    }
    for(long long i=0;i<n;i++)
    {
        for(long long j=0;j<t;j++)
        {
            if(v[i][j]==1)
            val[i]+=n-cpt[j];
        }
        r.push_back({val[i],i+1});
    }
    sort(r.rbegin(),r.rend());
    vector<pair<long long,long long>>ans;
    bool ok=true;
    long long pos;
    for(long long i=0;i<r.size();i++)
    {
        if(r[i].first==val[p-1])
        {
            ans.push_back({r[i].first, r[i].second});
            if(ok)
            {
                pos=i+1;
                ok=false;
            }
        }
    }
    sort(ans.begin(),ans.end());
    for(long long i=0;i<ans.size();i++)
    {
        if(ans[i].second==p-1)
        {
            pos+=i+1;
        }
    }
    cout<<val[p-1]<<" "<<pos<<endl;
    return 0;
}

Compilation message (stderr)

poi.cpp: In function 'int main()':
poi.cpp:37:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     for(long long i=0;i<r.size();i++)
      |                       ~^~~~~~~~~
poi.cpp:50:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |     for(long long i=0;i<ans.size();i++)
      |                       ~^~~~~~~~~~~
poi.cpp:54:16: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
   54 |             pos+=i+1;
      |             ~~~^~~~~

• Subtask 1: 60 / 100