Submission #687345

#	Time	Username	Problem	Language	Result	Execution time	Memory
687345		pragmatist	Simple game (IZhO17_game)	C++17	22 / 100	1080 ms	1332 KiB

game

/*
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("O3")
#pragma GCC target ("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmn,avx,tune=native")
#pragma GCC optimize("unroll-loops")
*/

#pragma GCC target("avx2", "bmi", "bmi2", "lzcnt", "popcnt")

#include<bits/stdc++.h>
 
#define sz(v) (int)v.size()
#define ll long long
#define pb push_back
#define x first
#define y second
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define nl "\n"

using namespace std;
using pii = pair<int, int>;

const int N = (int)1e6 + 7; // make sure this is right
const int inf = (int)1e9;
const ll INF = (ll)3e18 + 7; 
const ll MOD = (ll)1e9 + 7; // make sure this is right

pii dir[] = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};

int sum(int x, int y) {
	x += y;
	if(x >= MOD) x -= MOD;
	return x;
}

int mult(int x, int y) {
	return 1ll * x * y % MOD;
}

int n, q, a[N], lim;

void solve() {
	cin >> n >> q;
	for(int i = 1; i <= n; ++i) cin >> a[i];
	lim = 1e6;
	while(q--) {
		char tp;
		cin >> tp;
		if(tp == '1') {
			int id, val;
			cin >> id >> val;
	//		upd(1, 1, lim, a[id], 0);
			a[id] = val;
	//		upd(1, 1, lim, a[id], 1);
		} else {
			int h;
			cin >> h;
			int ans = 0;
			for(int i = 2; i <= n; ++i) {
				if(a[i] >= h && a[i - 1] < h || a[i - 1] >= h && a[i] < h) ans++;
			}
			cout << ans << nl;		
		}
	}
}

signed main() {	
	ios_base::sync_with_stdio(0);
	cin.tie(0); 
	int test = 1;
	//cin >> test;
	for(int i = 1; i <= test; ++i) {
	 	//cout << "Case #" << i << ": ";
		solve();
	}
	return 0;
}	

Compilation message (stderr)

game.cpp: In function 'void solve()':
game.cpp:63:18: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   63 |     if(a[i] >= h && a[i - 1] < h || a[i - 1] >= h && a[i] < h) ans++;
      |        ~~~~~~~~~~^~~~~~~~~~~~~~~

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