Submission #739261

#	Time	Username	Problem	Language	Result	Execution time	Memory
739261		Unforgettablepl	Poi (IOI09_poi)	C++17	100 / 100	268 ms	25508 KiB

poi

/*
ID: samikgo1
TASK:
LANG: C++
*/
#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long ll;
typedef pair<ll,ll> pll;
#define all(x) x.begin(),x.end()
#define allr(x) x.rbegin(),x.rend()
//#define f first
//#define s second
//#define x first
//#define y second
const int INF = INT32_MAX;

bool compa(vector<ll> &a, vector<ll> &b){
    if(a[0]==b[0]){
        if(a[1]==b[1]){
            return a[2]<b[2];
        } else {
            return a[1]>b[1];
        }
    } else {
        return a[0]>b[0];
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
//    freopen("measurement.in","r",stdin);
//    freopen("measurement.out","w",stdout);
    ll n,t,p;
    cin >> n >> t >> p;
    p--;
    vector<ll> marks(t,0);
    vector<vector<ll>> scores(n,vector<ll>(3));
    vector<vector<ll>> solved(n);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < t; j++) {
            int a;
            cin >> a;
            if(a){
                solved[i].emplace_back(j);
            } else {
                marks[j]++;
            }
        }
    }
    for (int i = 0; i < n; i++) {
        scores[i][2] = i;
        scores[i][1] = solved[i].size();
        scores[i][0] = 0;
        for (auto &j: solved[i]) {
            scores[i][0]+=marks[j];
        }
    }
    sort(all(scores),compa);
    for (int i = 0; i < n; i++) {
        if(scores[i][2]==p){
            cout << scores[i][0] << ' ' << i+1;
            return 0;
        }
    }
}

Compilation message (stderr)

poi.cpp: In function 'int main()':
poi.cpp:41:23: warning: comparison of integer expressions of different signedness: 'int' and 'll' {aka 'long long unsigned int'} [-Wsign-compare]
   41 |     for (int i = 0; i < n; i++) {
      |                     ~~^~~
poi.cpp:42:27: warning: comparison of integer expressions of different signedness: 'int' and 'll' {aka 'long long unsigned int'} [-Wsign-compare]
   42 |         for (int j = 0; j < t; j++) {
      |                         ~~^~~
poi.cpp:52:23: warning: comparison of integer expressions of different signedness: 'int' and 'll' {aka 'long long unsigned int'} [-Wsign-compare]
   52 |     for (int i = 0; i < n; i++) {
      |                     ~~^~~
poi.cpp:61:23: warning: comparison of integer expressions of different signedness: 'int' and 'll' {aka 'long long unsigned int'} [-Wsign-compare]
   61 |     for (int i = 0; i < n; i++) {
      |                     ~~^~~

• Subtask 1: 100 / 100