Submission #1104602

#	Time	Username	Problem	Language	Result	Execution time	Memory
1104602		Nonoze	Pyramids (IOI24_pyramids)	C++17	100 / 100	62 ms	9548 KiB

pyramids

#include "pyramids.h"
#include <bits/stdc++.h>
using namespace std;

#define sz(x) (int)(x.size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define cmin(a, b) a = min(a, b)
#define cmax(a, b) a = max(a, b)


vector<long long> pref1, pref2;

void init(vector<int> a, vector<int> b) {
	pref1.pb(a[0]), pref2.pb(b[0]);
	for (int i=1; i<sz(a); i++) {
		pref1.pb(pref1.back()+a[i]);
		pref2.pb(pref2.back()+b[i]);
	}
}

bool can_transform(int l, int r, int x, int y) {
	long long sum1=pref1[r]-(l?pref1[l-1]:0), sum2=pref2[y]-(x?pref2[x-1]:0);
	return sum1==sum2;
}

• Subtask 0: 0 / 0
• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 20 / 20
• Subtask 4: 30 / 30