Submission #252339

#	Time	Username	Problem	Language	Result	Execution time	Memory
252339		SamAnd	Poi (IOI09_poi)	C++17	100 / 100	452 ms	23892 KiB

poi

#include <bits/stdc++.h>
using namespace std;
const int N = 2003;
struct ban
{
    int i, q, s;
    ban()
    {
        i = q = s = 0;
    }
};
bool operator<(const ban& a, const ban& b)
{
    if (a.s > b.s)
        return true;
    if (a.s < b.s)
        return false;
    if (a.q > b.q)
        return true;
    if (a.q < b.q)
        return false;
    return a.i < b.i;
}

int n, m, p;
int a[N][N];

int u[N];

ban b[N];

int main()
{
    #ifdef SOMETHING
    freopen("input.txt", "r", stdin);
    #endif // SOMETHING
    scanf("%d%d%d", &n, &m, &p);
    for (int i = 1; i <= n; ++i)
    {
        for (int j = 1; j <= m; ++j)
            scanf("%d", &a[i][j]);
    }
    for (int j = 1; j <= m; ++j)
        u[j] = n;
    for (int i = 1; i <= n; ++i)
    {
        for (int j = 1; j <= m; ++j)
            u[j] -= a[i][j];
    }
    for (int i = 1; i <= n; ++i)
    {
        b[i].i = i;
        for (int j = 1; j <= m; ++j)
        {
            b[i].q += a[i][j];
            if (a[i][j])
                b[i].s += u[j];
        }
    }
    sort(b + 1, b + n + 1);
    for (int i = 1; i <= n; ++i)
    {
        if (b[i].i == p)
        {
            printf("%d %d\n", b[i].s, i);
        }
    }
    return 0;
}

Compilation message (stderr)

poi.cpp: In function 'int main()':
poi.cpp:37:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d", &n, &m, &p);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
poi.cpp:41:18: 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