Submission #872770

#	Time	Username	Problem	Language	Result	Execution time	Memory
872770		Danet	Pod starim krovovima (COCI20_psk)	C++14	50 / 50	1 ms	500 KiB

Main

#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3")

#define tof_io  ios_base::sync_with_stdio(false);cin.tie(0) , cout.tie(0);
#define double  long double
#define int     long long
#define pb      push_back

#define all(x)  x.begin(),x.end()
#define endl    '\n'

const int mod = 998244353; //998244353 1e9+7 1e9+9
const int inf = 1e18;
const int N = 1e5  + 23;	
const int lg = 23;
int fac[N];
int inv[N];
int  dnt_pow	(int a, int b, int md = mod){int ans = 1; while(b){if(b&1){ans = (a*ans)%md;}a = (a*a)%md;b >>= 1;}return ans ;}
void dnt_bld	(){fac[0] = 1; inv[0] = dnt_pow(fac[0],mod-2) ;for(int i = 1 ; i < N ; i++) {fac[i] = (fac[i-1] * i) % mod;inv[i] = dnt_pow( fac[i] , mod-2);}}
int  dnt_ncr	(int r,int n){if(r>n) return 0; return fac[n] * inv[r] % mod * inv[n-r] % mod;}
bool cmp (pair<int,int> a, pair<int,int> b){ return a.second > b.second; }
int32_t main()
{
	int n;
	cin >> n;
	vector<pair<int,int> > vall(n);
	int sum = 0;
	for(int i = 0; i < n; i++)
	{
		int t , z;
		cin >> t >> z;
		sum = sum + t;
		vall[i] = make_pair(z,i);
	}
	sort(all(vall));
	reverse(all(vall));
	vector<int> ans(n);
	int cnt = 0;
	for(int i = 0; i < n; i++)
	{
		if(sum >= vall[i].first)
		{
			sum = sum - vall[i].first;
		}
		else
		{
			vall[i].first = sum;
			sum = 0;
		}
		if(vall[i].first == 0) cnt++;
	}
	cout << cnt << endl;
	sort(all(vall),cmp);
	reverse(all(vall));
	for(int i = 0; i < n; i++) 
	{
		cout << vall[i].first <<' ';
	}
}

• Subtask 1: 50 / 50