Submission #722436

#	Time	Username	Problem	Language	Result	Execution time	Memory
722436		Abrar_Al_Samit	Food Court (JOI21_foodcourt)	C++17	14 / 100	1089 ms	411004 KiB

foodcourt

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

const int nax = 65003;
int n, m, q;

vector<pair<long long, int>>lines[nax];


struct BIT {
	long long bit[nax];
	void update(int i, long long val) {
		while(i<nax) {
			bit[i] += val;
			i += i&-i;
		}
	}
	void update(int l, int r, long long val) {
		update(l, val);
		update(r+1, -val);
	}
	long long query(int i) {
		long long ret = 0;
		while(i>0) {
			ret += bit[i];
			i -= i&-i;
		}
		return ret;
	}
} T;

long long fix(int i) {
	long long rem = T.query(i);
	if(lines[i].back().first<rem) {
		T.update(i, i, lines[i].back().first-rem);
		rem = lines[i].back().first;
	}
	return rem;
}
void PlayGround() {
	cin>>n>>m>>q;

	for(int i=1; i<=n; ++i) {
		lines[i].emplace_back(0LL, 0);
	}
	while(q--) {
		int tp;
		cin>>tp;
		if(tp==1) {
			long long l, r, c, k;
			cin>>l>>r>>c>>k;

			for(int i=l; i<=r; ++i) {
				fix(i);
				lines[i].emplace_back(lines[i].back().first+k, c);
			}
		} else if(tp==2) {
			long long l, r, k;
			cin>>l>>r>>k;
			T.update(l, r, k);
		} else {
			long long a, b;
			cin>>a>>b;
			long long rem = fix(a);
			b += rem;
			if(b > lines[a].back().first) {
				cout<<"0\n";
			} else {
				auto it = lower_bound(lines[a].begin(), lines[a].end(), make_pair(b, -1));
				cout<<it->second<<'\n';
			}
		}
	}


	// cerr << "Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
}
int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	PlayGround();
	return 0;
}

• Subtask 1: 2 / 2
• Subtask 2: 5 / 5
• Subtask 3: 7 / 7
• Subtask 4: 0 / 21
• Subtask 5: 0 / 15
• Subtask 6: 0 / 13
• Subtask 7: 0 / 26
• Subtask 8: 0 / 11