Submission #916956

#	Time	Username	Problem	Language	Result	Execution time	Memory
916956		Nonoze	Happiness (Balkan15_HAPPINESS)	C++17	60 / 100	3206 ms	524288 KiB

happiness

#include "happiness.h"
#include <bits/stdc++.h>
using namespace std;
#define int long long


struct node
{
	int left, right;
	int sum, lazy;
	int l, r;
	int maxi;
	node() {
		sum=0, left=-1, right=-1, maxi=0;
	}
};

node st[123456*64];
int cnt=1;
multiset<int> act;

void update(int root, int left, int right, int qLeft, int qRight, int nValue)
{
	if (left>qRight || right<qLeft) return;
	if (left>=qLeft && right<=qRight) {
		st[root].sum+=left*nValue;
		if (st[root].sum!=0) st[root].maxi=left;
		else st[root].maxi=0;
		return;
	}
	int mid=(left+right)/2;
	if (st[root].left==-1) {
		st[root].left = cnt++;
		st[ st[root].left ].l=left, st[ st[root].left ].r=mid;
	}
	if (st[root].right==-1) {
		st[root].right = cnt++;
		st[ st[root].right ].l=mid+1, st[ st[root].right ].r=right;
	}
	if (mid>=qLeft) update(st[root].left, left, mid, qLeft, qRight, nValue);
	if (mid+1<=qRight) update(st[root].right, mid+1, right, qLeft, qRight, nValue);
	st[root].sum=st[ st[root].left ].sum + st[ st[root].right ].sum;
	st[root].maxi=st[ st[root].right ].maxi - st[ st[root].left ].sum;
	st[root].maxi=max(st[ st[root].left ].maxi, st[root].maxi);
	st[root].maxi=max(st[root].maxi, 0LL);
	return;
}

int mx;

bool init(signed n, long long mxx, long long coins[]) {
	mx=mxx+100;
	st[0].l=1, st[0].r=mx+1;
	for (int i=0; i<n; i++) update(0, 1, mx+1, coins[i], coins[i], 1), act.insert(coins[i]);
	//update(0, 1, mx+1, *act.begin(), *act.begin(), -1);
	int ans=st[0].maxi;
	//update(0, 1, mx+1, *act.begin(), *act.begin(), 1);
	return ans<=1;
}
bool is_happy(signed event, signed n, long long coins[]) {
	for (int i=0; i<n; i++) {
		update(0, 1, mx+1, coins[i], coins[i], event);
		if (event==1) act.insert(coins[i]);
		else act.erase(act.find(coins[i]));
	}
	//update(0, 1, mx+1, *act.begin(), *act.begin(), -1);
	int ans=st[0].maxi;
	//update(0, 1, mx+1, *act.begin(), *act.begin(), 1);
	return ans<=1;
}

Compilation message (stderr)

grader.cpp: In function 'int main()':
grader.cpp:16:12: warning: unused variable 'max_code' [-Wunused-variable]
   16 |  long long max_code;
      |            ^~~~~~~~

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