답안 #1075424

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1075424 2024-08-26T05:56:39 Z Muhammad_Aneeq 송신탑 (IOI22_towers) C++17
0 / 100
4000 ms 8536 KB
#include <vector>
#include <algorithm>
#include <cmath>
using namespace std;
int const MAXN=1e5+10,LG=18;
int sp[MAXN][LG]={};
int n;
int dp[MAXN]={};
int a[MAXN]={};
bool uni=1;
int k=0;
void init(int N,vector<int> H)
{
	for (int i=0;i<N;i++)
		sp[i][0]=H[i],a[i]=H[i];
	for (int i=1;(1<<i)<=N;i++)
		for (int j=0;j+(1<<i)-1<N;j++)
			sp[j][i]=max(sp[j][i-1],sp[j+(1<<(i-1))][i-1]);
	n=N;
	for (int i=0;i+1<n;i++)
	{
		if (a[i]<a[i+1])
			continue;
		else
		{
			k=i;
			break;
		}
	}
	for (int i=k;i+1<n;i++)
	{
		if (a[i]>a[i+1])
			continue;
		else
		{
			uni=0;
			break;
		}
	}
}
int get(int l,int r)
{
	if (l>r)
		return -1;
	int lg=log2(r-l+1);
	return max(sp[l][lg],sp[r-(1<<lg)+1][lg]);
}
int max_towers(int L, int R, int D)
{
	if (uni)
	{
		if (k>=L&&k<=R)
			return min(2,R-L+1);
		return 1;
	}
	int i=L,j=R;
	if (R-L+1<3)
	{
		return R-L+1;
	}
	int ans=0;
	for (int i=L;i<=R;i++)
	{
		dp[i]=1;
		for (int j=i-2;j>=L;j--)
		{
			int z=get(j+1,i-1);
			if (z>=max(a[i],a[j])+D)
				dp[i]=max(dp[i],dp[j]+1);
		}
		ans=max(ans,dp[i]);
	}
	return ans;
}

Compilation message

towers.cpp: In function 'int max_towers(int, int, int)':
towers.cpp:56:6: warning: unused variable 'i' [-Wunused-variable]
   56 |  int i=L,j=R;
      |      ^
towers.cpp:56:10: warning: unused variable 'j' [-Wunused-variable]
   56 |  int i=L,j=R;
      |          ^
# 결과 실행 시간 메모리 Grader output
1 Incorrect 259 ms 5208 KB 2nd lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 10 ms 344 KB Output is correct
3 Correct 6 ms 600 KB Output is correct
4 Correct 4 ms 600 KB Output is correct
5 Correct 5 ms 600 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 4 ms 596 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 356 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 14 ms 600 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 25 ms 608 KB Output is correct
21 Correct 25 ms 344 KB Output is correct
22 Correct 25 ms 600 KB Output is correct
23 Incorrect 1 ms 344 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
24 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 10 ms 344 KB Output is correct
3 Correct 6 ms 600 KB Output is correct
4 Correct 4 ms 600 KB Output is correct
5 Correct 5 ms 600 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 4 ms 596 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 356 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 14 ms 600 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 25 ms 608 KB Output is correct
21 Correct 25 ms 344 KB Output is correct
22 Correct 25 ms 600 KB Output is correct
23 Incorrect 1 ms 344 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
24 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 4027 ms 8536 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Execution timed out 4059 ms 2392 KB Time limit exceeded
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 10 ms 344 KB Output is correct
3 Correct 6 ms 600 KB Output is correct
4 Correct 4 ms 600 KB Output is correct
5 Correct 5 ms 600 KB Output is correct
6 Correct 1 ms 600 KB Output is correct
7 Correct 4 ms 596 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 356 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 2 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 14 ms 600 KB Output is correct
17 Correct 2 ms 600 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 2 ms 344 KB Output is correct
20 Correct 25 ms 608 KB Output is correct
21 Correct 25 ms 344 KB Output is correct
22 Correct 25 ms 600 KB Output is correct
23 Incorrect 1 ms 344 KB 1st lines differ - on the 1st token, expected: '1', found: '2'
24 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 259 ms 5208 KB 2nd lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -