Submission #963699

#	Time	Username	Problem	Language	Result	Execution time	Memory
963699		guechotjrhh	Safety (NOI18_safety)	C++14	13 / 100	174 ms	2216 KiB

safety

#include<stdio.h>
#include<vector>
#pragma warning (disable:4996)
using namespace std;

#define ll long long
ll ab(ll n) { return n > 0 ? n : -n; }
long long func(int n, int h, vector<int> s) {
	vector<ll> dp(501,0);

	for (int i = 0; i < n; i++) {
		vector<ll> ndp(501);
		for (int j = 0; j <= 500; j++) {
			ndp[j] = ab(j - s[i]);
			ll mn = 1e18;
			for (int k = max(0, j - h); k <= min(500, j + h); k++) mn = min(mn, dp[k]);
			ndp[j] += mn;
		}
		dp = ndp;
	}

	ll mn = 1e18;
	for (int i = 0; i <= 500; i++) mn = min(mn, dp[i]);

	return mn;
}

int main() {
	int N, H;
	scanf("%d%d", &N, &H);
	vector<int> S(N);
	for (int i = 0; i < N; i++) scanf("%d", &S[i]);

	long long ans = func(N, H, move(S));

	printf("%d\n", ans);
}

Compilation message (stderr)

safety.cpp:3: warning: ignoring '#pragma warning ' [-Wunknown-pragmas]
    3 | #pragma warning (disable:4996)
      | 
safety.cpp: In function 'int main()':
safety.cpp:36:11: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   36 |  printf("%d\n", ans);
      |          ~^     ~~~
      |           |     |
      |           int   long long int
      |          %lld
safety.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |  scanf("%d%d", &N, &H);
      |  ~~~~~^~~~~~~~~~~~~~~~
safety.cpp:32:35: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |  for (int i = 0; i < N; i++) scanf("%d", &S[i]);
      |                              ~~~~~^~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 4 / 4
• Subtask 3: 0 / 9
• Subtask 4: 0 / 5
• Subtask 5: 6 / 6
• Subtask 6: 0 / 11
• Subtask 7: 0 / 11
• Subtask 8: 0 / 22
• Subtask 9: 0 / 29