oj.uz

Submission #746763

# Submission time Handle Problem Language Result Execution time Memory
746763 2023-05-23T04:10:46 Z Abrar_Al_Samit Skyline (IZhO11_skyline) C++17
100 / 100
 157 ms 56152 KB 
#include<bits/stdc++.h>
using namespace std;

int dp[305][205][205];
int n;
int a[305];

int op3(int i, int &n1, int &n2) {
	int x = n1, y = n2, z = a[i+2];

	int ret = 0;
	int take = min({x, y, z});
	ret = take * 7;

	x -= take;
	y -= take;
	z -= take;

	if(x) {
		if(y) {
			take = min(x, y);
			ret += take * 5;

			x -= take;
			y -= take;

			if(x) {
				ret += x * 3;
			}
		} else {
			ret += x * 3;
		}
	}
	n1 = y, n2 = z;
	return ret;
}
int solve(int i, int n1, int n2) {
	if(i>n) return 0;

	int &ret = dp[i][n1][n2];
	if(ret!=-1) return ret;

	if(!n1) return ret = solve(i+1, n2, a[i+2]);
	if(n1) ret = solve(i, n1-1, n2) + 3;
	if(n1 && n2) ret = solve(i, n1-1, n2-1) + 5;

	int c = op3(i, n1, n2);
	ret = min(ret, c+solve(i+1, n1, n2));
	return ret;
}
void PlayGround() {
	cin>>n;
	for(int i=1; i<=n; ++i) {
		cin>>a[i];
	}	
	memset(dp, -1, sizeof dp);
	cout<<solve(1, a[1], a[2])<<'\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
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 50396 KB Output is correct
2 Correct 21 ms 50440 KB Output is correct
3 Correct 23 ms 50384 KB Output is correct
4 Correct 22 ms 50464 KB Output is correct
5 Correct 23 ms 50464 KB Output is correct
6 Correct 20 ms 50388 KB Output is correct
7 Correct 21 ms 50388 KB Output is correct
8 Correct 24 ms 50456 KB Output is correct
9 Correct 25 ms 50464 KB Output is correct
10 Correct 26 ms 50648 KB Output is correct
11 Correct 36 ms 51660 KB Output is correct
12 Correct 30 ms 50720 KB Output is correct
13 Correct 39 ms 52004 KB Output is correct
14 Correct 63 ms 52456 KB Output is correct
15 Correct 155 ms 54868 KB Output is correct
16 Correct 135 ms 54548 KB Output is correct
17 Correct 153 ms 56152 KB Output is correct
18 Correct 157 ms 56084 KB Output is correct
19 Correct 141 ms 55636 KB Output is correct
20 Correct 154 ms 56108 KB Output is correct