Submission #465281

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
465281	2021-08-15T13:30:41 Z	dattranxxx	Stove (JOI18_stove)	C++11	50 / 100	149 ms	198864 KB

stove

/*
 * Author :  shora
 */
#include <bits/stdc++.h>
#define print(_v) for (auto &_ : _v) {cerr << _ << ' ';} cerr << endl;
using namespace std;
using ll = long long;
const int oo = 1e9;
const int N = 5000;
int a[N+1];
int n, k;
int dp[N+1][N+1];
int main() {
  cin.tie(0)->sync_with_stdio(0); cout.tie(0);
  cin >> n >> k;
  for (int i = 1; i <= n; ++i)
  	cin >> a[i];
  // dp[j][i] = a[i] + min(dp[j-1][u-1] - a[u]) + 1 : u <= i
  // dp[j][i] = a[i] + g[j-1] + 1 voi g[i] = min(dp[i][p-1] + a[p]) 
  // dp[i] la mot day tang 
  // a[i] la mot day tang
	memset(dp, 0x3f, sizeof(dp));
	int res = oo;
	for (int i = 0; i <= k; ++i) dp[i][0] = 0;
  for (int i = 1; i <= k; ++i) {
  	int mn = oo;
  	for (int j = 1; j <= n; ++j) {
  		mn = min(mn, dp[i-1][j-1] - a[j]);
  		dp[i][j] = a[j] + mn + 1;
		}
	}
	cout << dp[k][n];
  
  
  return 0;
}

Compilation message

stove.cpp: In function 'int main()':
stove.cpp:23:6: warning: unused variable 'res' [-Wunused-variable]
   23 |  int res = oo;
      |      ^~~

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	44 ms	98116 KB	Output is correct
2	Correct	42 ms	98100 KB	Output is correct
3	Correct	44 ms	98132 KB	Output is correct
4	Correct	45 ms	98140 KB	Output is correct
5	Correct	45 ms	98156 KB	Output is correct
6	Correct	43 ms	98152 KB	Output is correct
7	Correct	44 ms	98148 KB	Output is correct
8	Correct	50 ms	98144 KB	Output is correct
9	Correct	44 ms	98196 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	44 ms	98116 KB	Output is correct
2	Correct	42 ms	98100 KB	Output is correct
3	Correct	44 ms	98132 KB	Output is correct
4	Correct	45 ms	98140 KB	Output is correct
5	Correct	45 ms	98156 KB	Output is correct
6	Correct	43 ms	98152 KB	Output is correct
7	Correct	44 ms	98148 KB	Output is correct
8	Correct	50 ms	98144 KB	Output is correct
9	Correct	44 ms	98196 KB	Output is correct
10	Correct	46 ms	98180 KB	Output is correct
11	Correct	45 ms	98192 KB	Output is correct
12	Correct	49 ms	98100 KB	Output is correct
13	Correct	53 ms	98136 KB	Output is correct
14	Correct	57 ms	98116 KB	Output is correct
15	Correct	56 ms	98124 KB	Output is correct

Subtask #3

0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	44 ms	98116 KB	Output is correct
2	Correct	42 ms	98100 KB	Output is correct
3	Correct	44 ms	98132 KB	Output is correct
4	Correct	45 ms	98140 KB	Output is correct
5	Correct	45 ms	98156 KB	Output is correct
6	Correct	43 ms	98152 KB	Output is correct
7	Correct	44 ms	98148 KB	Output is correct
8	Correct	50 ms	98144 KB	Output is correct
9	Correct	44 ms	98196 KB	Output is correct
10	Correct	46 ms	98180 KB	Output is correct
11	Correct	45 ms	98192 KB	Output is correct
12	Correct	49 ms	98100 KB	Output is correct
13	Correct	53 ms	98136 KB	Output is correct
14	Correct	57 ms	98116 KB	Output is correct
15	Correct	56 ms	98124 KB	Output is correct
16	Runtime error	149 ms	198864 KB	Execution killed with signal 11
17	Halted	0 ms	0 KB	-