Submission #341239

#	Time	Username	Problem	Language	Result	Execution time	Memory
341239		Habib_Assoev	Simple game (IZhO17_game)	C++14	49 / 100	1046 ms	8196 KiB

game

# include<bits/stdc++.h>
#define in freopen ("measurement.in", "r", stdin);
#define out freopen("measurement.out", "w", stdout);
#define ll long long
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define speed ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
using namespace std ;
long long const N = 1e6 + 7;
long long N1 = 1e9 + 7;
double long k = 0;

int a[N], dp[N];

int main( ){
    //in out
    speed ;
    ll TJK = 1 ;
    // cin >> TJK ;
    while( TJK -- ){
        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;
            }
        }
    }
}

Compilation message (stderr)

game.cpp: In function 'int main()':
game.cpp:45:24: warning: unused variable 'cnt' [-Wunused-variable]
   45 |                 int h, cnt = 0;
      |                        ^~~

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