제출 #1049980

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1049980		vjudge1	Self Study (JOI22_ho_t2)	C++11	0 / 100	0 ms	348 KiB

Main

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vl vector<ll>
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define all(v) v.begin(), v.end()
#define SZ(x) ((int)((x).size()))
#define pow2(x) ((ll)(x) * (x))
const ll mod = 1e9 + 7;
const int INF = 1e9 + 5; // 998244353
const ll INFF = 1e18 + 5;
// Super is the cutest girl
void solve()
{
    ll n, m;
    cin >> n >> m;
    vl a(n), b(n);
    for (int i = 0; i < n; i++)
    {
        cin >> a[i];
    }
    ll cnt = 0;
    for (int i = 0; i < n; i++)
    {
        cin >> b[i];
        if (b[i] > a[i])
        {
            cnt++;
        }
    }
    ll ans = INFF;
    if (cnt % 2 == 0)
    {
        for (int i = 0; i < n; i++)
        {
            ans = min(ans, max(a[i], b[i]));
        }
    }
    else
    {
        int maxpos;
        ll maxcurr = 0;
        for (int i = 0; i < n; i++)
        {
            if (a[i] < b[i])
            {
                if (a[i] > maxcurr)
                {
                    maxcurr = a[i];
                    maxpos = i;
                }
            }
        }
        for (int i = 0; i < n; i++)
        {
            if (i == maxpos)
            {
                ans = min(ans, a[i]);
            }
            else
                ans = min(ans, max(a[i], b[i]));
        }
    }
    // subtask 1
    cout << ans << '\n';
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    // freopen("input.txt","r",stdin);
    // freopen("output.txt","w",stdout);
    // int t; cin >> t; while(t--)
    solve();
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'void solve()':
Main.cpp:63:13: warning: 'maxpos' may be used uninitialized in this function [-Wmaybe-uninitialized]
   63 |             if (i == maxpos)
      |             ^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 9