제출 #1089021

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1089021		vjudge1	Izbori (COCI17_izbori)	C++17	44 / 80	20 ms	468 KiB

izbori

#include "bits/stdc++.h"
const signed MOD = 1e9 + 7;
const signed mod = 998244353;
using namespace std;
#define all(x) x.begin(), x.end()
#define ld long double
#define ll long long
#define pb push_back
#define mp make_pair
#define co cout <<
#define S second
#define F first
int n, m, k, ans, a[105][20];

void sol(vector<bool> v, int cn) {
    if (cn == m) return;
    int f[20] = {};
    for (int i = 0; i < n; i++) {
        int j = 0;
        while (j < m && v[a[i][j]]) j++;
        if (j < m) f[a[i][j]]++;
    }
    int mx = 0, num;

    for (int i = 1; i <= m; i++) {
        if (f[i] > mx) {
            mx = f[i];
            num = i;
        }
    }
    if (num == k) ans = min(ans, cn);
    if (cn == 0) co num << '\n';
    v[cn + 1] = 1;
    sol(v, cn + 1);
    v[cn + 1] = 0;
    sol(v, cn + 1);
}

void solve() {
    cin >> n >> m >> k;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> a[i][j];
        }
    }
    vector<bool> v(20, 0);
    ans = m - 1;
    sol(v, 0);
    co ans;
}

signed main() {
    cin.tie(0)->sync_with_stdio(0);
    signed t = 1;
    // cin >> t;
    while (t--) solve();
}

컴파일 시 표준 에러 (stderr) 메시지

izbori.cpp: In function 'void sol(std::vector<bool>, int)':
izbori.cpp:32:28: warning: 'num' may be used uninitialized in this function [-Wmaybe-uninitialized]
   32 |     if (cn == 0) co num << '\n';
      |                            ^~~~

• Subtask 1: 44 / 80