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Submission #1022565

# Submission time Handle Problem Language Result Execution time Memory
1022565 2024-07-13T18:01:30 Z socpite Rice Hub (IOI11_ricehub) C++14
0 / 100
 38 ms 860 KB 
#include "ricehub.h"
#include<bits/stdc++.h>
using namespace std;

const int maxn = 1e5+5;
const int INF = 1e9+5;

int A[maxn];
long long pfx[maxn];


int besthub(int R, int L, int X[], long long B)
{
	int ans = 0;
	for(int i = 1; i <= R; i++){
		A[i] = X[i-1];
		pfx[i] = pfx[i-1] + A[i];
	}
	for(int i = 1; i <= R; i++){
		int l = 0, r = INF;
		while(l < r){
			int mid = (l+r+1)>>1;

			long long sum = 0;
			int pl = lower_bound(A+1, A+R+1, A[i] - mid) - A - 1;
			sum += 1LL*A[i]*(i - pl) - (pfx[i] - pfx[pl]);

			int pr = upper_bound(A+1, A+R+1, A[i]+mid) - A - 1;
			sum += (pfx[pr] - pfx[i-1]) - 1LL*A[i]*(pr - (i-1));
			if(sum <= B)l = mid;
			else r = mid-1;
		}
		if(l == INF)return R;
		int mid = l;

		long long sum = 0;
		int pl = lower_bound(A+1, A+R+1, A[i] - mid) - A - 1;
		sum += 1LL*A[i]*(i - pl) - (pfx[i] - pfx[pl]);

		int pr = upper_bound(A+1, A+R+1, A[i]+mid) - A - 1;
		sum += (pfx[pr] - pfx[i-1]) - 1LL*A[i]*(pr - (i-1));
		
		ans = max<long long>(ans, pr - pl + (B - sum)/l);
	}
	return ans;
}

Subtask #1
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Incorrect 0 ms 348 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 1 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Incorrect 1 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 860 KB Output is correct
2 Incorrect 38 ms 860 KB Output isn't correct
3 Halted 0 ms 0 KB -