Submission #696553

#	Time	Username	Problem	Language	Result	Execution time	Memory
696553		Hacv16	Poi (IOI09_poi)	C++17	100 / 100	221 ms	57280 KiB

poi

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
const int MAX = 2e6 + 15;
const int INF = 0x3f3f3f3f;

int n, t, p, value[MAX], score[MAX];
vector<int> solve[MAX];

bool cmp(int a, int b){
    if(score[a] != score[b]) return score[a] > score[b];
    if(solve[a].size() != solve[b].size()) return solve[a].size() > solve[b].size();
    return a < b;
}

int32_t main(void){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); 
    
    cin >> n >> t >> p;

    for(int i = 1; i <= t; i++) value[i] = n;

    for(int i = 1; i <= n; i++){
        for(int k = 1; k <= t; k++){
            ll x; cin >> x;
            if(x){ value[k]--; solve[i].push_back(k); }
        }
    }

    for(int i = 1; i <= n; i++)
        for(auto x : solve[i])
            score[i] += value[x];
    
    vector<int> rank(n);
    iota(rank.begin(), rank.end(), 1);

    sort(rank.begin(), rank.end(), cmp);

    for(int i = 0; i < rank.size(); i++)
        if(rank[i] == p){ cout << score[p] << ' ' << i + 1 << '\n'; exit(0); }
} 

Compilation message (stderr)

poi.cpp: In function 'int32_t main()':
poi.cpp:41:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |     for(int i = 0; i < rank.size(); i++)
      |                    ~~^~~~~~~~~~~~~

• Subtask 1: 100 / 100