Submission #221798

#	Time	Username	Problem	Language	Result	Execution time	Memory
221798		patrikpavic2	Poi (IOI09_poi)	C++17	100 / 100	417 ms	31864 KiB

poi

/**
* user:  ppavic
* fname: Patrik
* lname: Pavić
* task:  poi
* score: 100.0
* date:  2019-05-11 07:47:44.386747
*/
#include <cstdio>
#include <vector>
#include <algorithm>

#define X first
#define Y second
#define PB push_back

using namespace std;

typedef pair < int, int > pii;
typedef pair < int , pii > pip;

const int N = 3050;

int n, t, p, sc[N], A[N][N];
vector < pip > v;

int main(){
    scanf("%d%d%d", &n, &t, &p);
    for(int i = 0;i < n;i++){
        for(int j = 0;j < t;j++){
            scanf("%d", &A[i][j]);
            sc[j] += !A[i][j];
        }
    }
    for(int i = 0;i < n;i++){
        int cur = 0, cnt = 0;
        for(int j = 0;j < t;j++)
            cur += A[i][j] * sc[j], cnt += A[i][j];
        v.PB({-cur, {-cnt, i + 1}});
        if(i + 1 == p) printf("%d ", cur);
    }
    sort(v.begin(), v.end());
    for(int i = 0;i < n;i++){
        if(v[i].Y.Y == p)
            printf("%d\n", i + 1);
    }
}

Compilation message (stderr)

poi.cpp: In function 'int main()':
poi.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d", &n, &t, &p);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
poi.cpp:31:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d", &A[i][j]);
             ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100