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Submission #488507

# Submission time Handle Problem Language Result Execution time Memory
488507 2021-11-19T11:28:37 Z cheissmart Potatoes and fertilizers (LMIO19_bulves) C++14
100 / 100
 154 ms 15028 KB 
#include <bits/stdc++.h>
#define IO_OP std::ios::sync_with_stdio(0); std::cin.tie(0);
#define F first
#define S second
#define V vector
#define PB push_back
#define MP make_pair
#define EB emplace_back
#define ALL(v) (v).begin(), (v).end()

using namespace std;

typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;

string _reset = "\u001b[0m", _yellow = "\u001b[33m", _bold = "\u001b[1m";
void DBG() { cerr << "]" << _reset << endl; }
template<class H, class...T> void DBG(H h, T ...t) {
	cerr << to_string(h);
	if(sizeof ...(t)) cerr << ", ";
	DBG(t...);
}
#ifdef CHEISSMART
#define debug(...) cerr << _yellow << _bold << "Line(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define debug(...)
#endif

const int INF = 1e9 + 7, N = 5e5 + 7;

ll diff[N];

signed main()
{
	IO_OP;

	int n;
	cin >> n;
	priority_queue<ll> pq;
	pq.push(0);
	ll lst = 0;
	for(int i = 1; i <= n; i++) {
		int a, b;
		cin >> a >> b;
		diff[i] = diff[i - 1] + b - a;
		ll x = -diff[i];
		if(x < 0) {
			lst +=  pq.top() - x;
			pq.pop();
			if(pq.empty())
				pq.push(0);
		} else {
			pq.push(x);
			if(pq.top() > x) {
				lst += pq.top() - x;
				pq.pop();
				pq.push(x);
			}
		}
	}
	assert(diff[n] <= 0);
	while(pq.size() && pq.top() > -diff[n]) {
		lst += pq.top() - (-diff[n]);
		pq.pop();
	}
	cout << lst << '\n';
}

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 12 ms 1360 KB Output is correct
5 Correct 27 ms 2124 KB Output is correct
6 Correct 90 ms 7672 KB Output is correct
7 Correct 85 ms 11344 KB Output is correct
8 Correct 147 ms 13112 KB Output is correct
9 Correct 94 ms 8952 KB Output is correct
10 Correct 86 ms 10196 KB Output is correct
11 Correct 95 ms 10148 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 12 ms 1360 KB Output is correct
5 Correct 27 ms 2124 KB Output is correct
6 Correct 90 ms 7672 KB Output is correct
7 Correct 85 ms 11344 KB Output is correct
8 Correct 147 ms 13112 KB Output is correct
9 Correct 94 ms 8952 KB Output is correct
10 Correct 86 ms 10196 KB Output is correct
11 Correct 95 ms 10148 KB Output is correct
12 Correct 42 ms 3824 KB Output is correct
13 Correct 105 ms 8512 KB Output is correct
14 Correct 92 ms 11208 KB Output is correct
15 Correct 140 ms 13056 KB Output is correct
16 Correct 154 ms 11000 KB Output is correct
17 Correct 76 ms 10296 KB Output is correct
18 Correct 1 ms 336 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 12 ms 1360 KB Output is correct
12 Correct 27 ms 2124 KB Output is correct
13 Correct 90 ms 7672 KB Output is correct
14 Correct 85 ms 11344 KB Output is correct
15 Correct 147 ms 13112 KB Output is correct
16 Correct 94 ms 8952 KB Output is correct
17 Correct 86 ms 10196 KB Output is correct
18 Correct 95 ms 10148 KB Output is correct
19 Correct 42 ms 3824 KB Output is correct
20 Correct 105 ms 8512 KB Output is correct
21 Correct 92 ms 11208 KB Output is correct
22 Correct 140 ms 13056 KB Output is correct
23 Correct 154 ms 11000 KB Output is correct
24 Correct 76 ms 10296 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 33 ms 4060 KB Output is correct
34 Correct 83 ms 10252 KB Output is correct
35 Correct 141 ms 14960 KB Output is correct
36 Correct 125 ms 12656 KB Output is correct
37 Correct 150 ms 13100 KB Output is correct
38 Correct 126 ms 15028 KB Output is correct
39 Correct 77 ms 11188 KB Output is correct
40 Correct 82 ms 10368 KB Output is correct
41 Correct 78 ms 10164 KB Output is correct
42 Correct 73 ms 10164 KB Output is correct
43 Correct 78 ms 10196 KB Output is correct
44 Correct 79 ms 10152 KB Output is correct
45 Correct 153 ms 14164 KB Output is correct
46 Correct 72 ms 10432 KB Output is correct
47 Correct 89 ms 9080 KB Output is correct