Submission #1316651

#	Time	Username	Problem	Language	Result	Execution time	Memory
1316651		lev	Gym Badges (NOI22_gymbadges)	C++20	100 / 100	119 ms	6504 KiB

Main

#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define pii pair<int, int>
#define all(a) a.begin(), a.end()
using namespace std;

#ifdef LOCAL
#include "C:\Users\Dell\Downloads\template\template\icpc-notebook\Utilities\debug.h"
#else
#define debug(...) 42
#endif

const int mn = 5e5 + 5, mod = 1e9 + 7, inf = 2e9;

int n;
array <int, 2> a[mn];

bool cmp(array <int, 2> x, array<int, 2> y){
	return x[0] + x[1] < y[0] + y[1];
}

void solve() {
    cin >> n;
    for(int i = 1; i <= n; i++) cin >> a[i][0];
   	for(int i = 1; i <= n; i++) cin >> a[i][1];
    sort(a + 1, a + n + 1, cmp);
	int cur = 0, ans = 0;

	priority_queue <int> pq;
	for(int i = 1; i <= n; i++){
		debug(cur, a[i][0], a[i][1]);
		if(pq.size()) debug(pq.top());
		if(cur <= a[i][1]){
			pq.push(a[i][0]);
			cur += a[i][0], ans ++;
		}
		else if(i > 1 && a[i][0] < pq.top()){
			cur -= pq.top(), cur += a[i][0];
			pq.pop();
			pq.push(a[i][0]);
		}
	}
	cout << ans << '\n';
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
    #define task "Kawabata"
    if (fopen(task".INP", "r")) {
        freopen(task".INP", "r", stdin);
        freopen(task".OUT", "w", stdout);
    }
    int t = 1;
    // cin >> t;
    while (t--) solve();
    return 0;
}
// Don't wanna lose anymore T_T
// Never let me go - Kazuo Ishiguro

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:53:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |         freopen(task".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:54:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   54 |         freopen(task".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 9 / 9
• Subtask 3: 27 / 27
• Subtask 4: 49 / 49