oj.uz

답안 #841349

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
841349 2023-09-01T14:23:30 Z alex_2008 K개의 묶음 (IZhO14_blocks) C++14
0 / 100
 1 ms 312 KB 
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
using namespace std;
const int N = 100100, K = 101;
int dp[N][K], a[N], prevv[N], mn[N];
int main() {
	int n, k;
	scanf("%d%d", &n, &k);
	a[0] = 1e6 + 10;
	for (int i = 1; i <= n; i++) {
		scanf("%d", &a[i]);
		int j = i - 1;
		while (a[j] < a[i]) {
			j = prevv[j];
		}
		prevv[i] = j;
	}
	dp[1][0] = 1e9 + 10;
	for (int i = 1; i <= n; i++) {
		dp[i][1] = max(dp[i - 1][1], a[i]);
	}
	for (int j = 2; j <= k; j++) {
		for (int i = 1; i <= n; i++) {
			mn[i] = 1e9 + 10;
			int x = i - 1;
			while (x != prevv[i]) {
				mn[i] = min(mn[i], mn[x]);
				x = prevv[x];
			}
			mn[i] = min(mn[i], dp[i][j - 1]);
		}
		for (int i = 0; i <= n; i++) {
			if (i < j) dp[i][j] = 1e9;
			else {
				dp[i][j] = dp[prevv[i]][j];
				dp[i][j] = mn[i] + a[i];
				if (prevv[i] >= j) {
					dp[i][j] = min(dp[i][j], dp[prevv[i]][j]);
				}	
			}
		}
	}
	printf("%d\n", dp[n][k]);
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:8:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |  scanf("%d%d", &n, &k);
      |  ~~~~~^~~~~~~~~~~~~~~~
blocks.cpp:11:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |   scanf("%d", &a[i]);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 0 ms 308 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 312 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Incorrect 0 ms 212 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 312 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Incorrect 0 ms 212 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 0 ms 308 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 312 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Incorrect 0 ms 212 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #4
0 / 47.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 308 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 0 ms 308 KB Output is correct
5 Correct 0 ms 308 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 312 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Incorrect 0 ms 212 KB Output isn't correct
11 Halted 0 ms 0 KB -