Submission #309072

#	Time	Username	Problem	Language	Result	Execution time	Memory
309072		talant117408	Divide and conquer (IZhO14_divide)	C++17	17 / 100	1 ms	384 KiB

divide

/*
    Code written by Talant I.D.
*/
   
#include <bits/stdc++.h>
   
using namespace std;
   
typedef long long ll;
typedef pair <int, int> pii;
typedef tuple <int, int, int> tiii;
   
#define precision(n) fixed << setprecision(n)
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define mp make_pair
#define mt make_tuple
#define mod (int)1e9+7
#define eps (double)1e-9
#define PI 2*acos(-0.0);
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define do_not_disturb ios::sync_with_stdio(0);cin.tie(0);
#define curMod 998244353
 
inline bool isvowel(char ch){
    ch = tolower(ch);
    return (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u');
}
 
bool isprime(int n){
	if(n < 2 || (n % 2 == 0 && n != 2))
		return false;
	for(int i = 3; i*i <= n; i += 2) 
		if(n % i == 0) return false;
	return true;
}
 
int main(){ 
    do_not_disturb
	ll n, i, mx = 0ll, l = 1ll, r = 1ll;
	cin >> n;
	vector <ll> en(n+1), gold(n+1), pos(n+1);
	en[0] = gold[0] = 0ll;
	
	for(i = 1; i <= n; i++){
		cin >> pos[i] >> gold[i] >> en[i];
	}
	for(i = 1; i <= n; i++){
		en[i] += en[i-1];
		gold[i] += gold[i-1];
	}
	
	while(r <= n){
		if(en[r]-en[l-1] >= abs(pos[r]-pos[l])){
			mx = max(mx, gold[r]-gold[l-1]);
			r++;
		}
		else{
			l++;
          	if(r < l) r++;
		}
	}
	cout << mx;
	
    return 0;
} // What is to be written here?

• Subtask 1: 17 / 17
• Subtask 2: 0 / 31
• Subtask 3: 0 / 52