제출 #341273

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
341273		Dilshod_Imomov	Simple game (IZhO17_game)	C++17	49 / 100	1031 ms	13792 KiB

game

# include <bits/stdc++.h>
# define speed ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
# define int long long
# define fi first
# define se second
 
using namespace std;
 
const int N = 1e6 + 7;
const int mod = 1e9 + 7;

int a[N], dp[N];

int32_t main() {
    speed; 
    int n, m;
    cin >> n >> m;
    for ( int i = 1; i <= n; i++ ) {
        cin >> a[i];
    }
    for ( int i = 2; i <= n; i++ ) {
        int l = a[i - 1], r = a[i];
        if ( l > r ) {
            swap( l, r );
        }
        dp[l]++;
        dp[r + 1]--;
    }
    for ( int i = 1; i < N; i++ ) {
        dp[i] += dp[i - 1];
    }
    vector < pair < int, pair < int, int > > > vc;
    int s2 = 1;
    for ( int i = 1; i <= m; i++ ) {
        int t;
        cin >> t;
        if ( t == 2 ) {
            int h, cnt = 0;
            cin >> h;
            vc.push_back( { 2, { h, 0 } } );
        }
        else {
            int pos, val;
            cin >> pos >> val;
            vc.push_back( { 1, { pos, val } } );
            s2 = 0;
        }
    }
    if ( s2 ) {
        for ( int i = 0; i < m; i++ ) {
            int h = vc[i].second.first;
            cout << dp[h] << '\n';
        }
        return 0;
    }
    for ( int i = 0; i < m; i++ ) {
        int t = vc[i].first;
        if ( t == 2 ) {
            int h = vc[i].second.first, cnt = 0;
            for ( int i = 2; i <= n; i++ ) {
                if ( (a[i - 1] < h && a[i] > h) || (a[i - 1] > h && a[i] < h) ) {
                    cnt++;
                }
            }
            cout << cnt << '\n';
        }
        else {
            int pos = vc[i].se.fi, val = vc[i].se.se;
            a[pos] = val;
        }
    }
}

컴파일 시 표준 에러 (stderr) 메시지

game.cpp: In function 'int32_t main()':
game.cpp:38:20: warning: unused variable 'cnt' [-Wunused-variable]
   38 |             int h, cnt = 0;
      |                    ^~~

• Subtask 1: 22 / 22
• Subtask 2: 27 / 27
• Subtask 3: 0 / 51