Submission #102806

# Submission time Handle Problem Language Result Execution time Memory
102806 2019-03-27T15:46:39 Z CorneliuVadimTudor Gap (APIO16_gap) C++14
0 / 100
126 ms 2464 KB
#include <bits/stdc++.h>

#include "gap.h"

std::vector <long long> V;
long long findGap(int T, int N){
    long long A, B;
    MinMax(0, 1000000000000000000LL, &A, &B);

    long long Dmax = B - A;
    long long dist = ceil(1.0 * Dmax / (N - 1)) + 1;
    long long st;

    long long maxx = 0, prev = 1000000000000000000LL;
    for(st = A; st + dist <= B; st += dist){
        long long a, b;
        MinMax(st, st + dist - 1, &a, &b);
        V.push_back(a);
        if(b != a) V.push_back(b);

        if(a - prev > maxx) maxx = a - prev;
        if(b - a > maxx) maxx = b - a;
        prev = b;
    }
    if(V.size() && V.back() != -1 && B - V.back() > maxx){
        long long a, b;
        MinMax(st, B, &a, &b);
        V.push_back(a);
        if(b != a) V.push_back(b);
    }

    for(int i = 0; i + 1 < V.size(); i++)
        if(V[i] != -1 && V[i + 1] - V[i] > maxx) maxx = V[i + 1] - V[i];
    return maxx;
};

/*static void my_assert(int k){ if (!k) exit(1); }

static int subtask_num, N;
static long long A[100001];
static long long call_count;
void MinMax(long long s, long long t, long long *mn, long long *mx)
{
	int lo = 1, hi = N, left = N+1, right = 0;
	my_assert(s <= t && mn != NULL && mx != NULL);
	while (lo <= hi){
		int mid = (lo+hi)>>1;
		if (A[mid] >= s) hi = mid - 1, left = mid;
		else lo = mid + 1;
	}
	lo = 1, hi = N;
	while (lo <= hi){
		int mid = (lo+hi)>>1;
		if (A[mid] <= t) lo = mid + 1, right = mid;
		else hi = mid - 1;
	}
	if (left > right) *mn = *mx = -1;
	else{
		*mn = A[left];
		*mx = A[right];
	}
	if (subtask_num == 1) call_count++;
	else if (subtask_num == 2) call_count += right-left+2;
}

int main()
{
	FILE *in = stdin, *out = stdout;
	my_assert(2 == fscanf(in, "%d%d", &subtask_num, &N));
	my_assert(1 <= subtask_num && subtask_num <= 2);
	my_assert(2 <= N && N <= 100000);
	for (int i=1;i<=N;i++) my_assert(1 == fscanf(in, "%lld", A+i));
	for (int i=1;i<N;i++) my_assert(A[i] < A[i+1]);
	fprintf(out, "%lld\n", findGap(subtask_num, N));
	fprintf(out, "%lld\n", call_count);
}*/

Compilation message

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:32:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i + 1 < V.size(); i++)
                    ~~~~~~^~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 384 KB Output isn't correct
2 Incorrect 2 ms 384 KB Output isn't correct
3 Incorrect 2 ms 384 KB Output isn't correct
4 Incorrect 2 ms 384 KB Output isn't correct
5 Incorrect 3 ms 384 KB Output isn't correct
6 Incorrect 2 ms 384 KB Output isn't correct
7 Incorrect 2 ms 384 KB Output isn't correct
8 Incorrect 3 ms 384 KB Output isn't correct
9 Incorrect 3 ms 384 KB Output isn't correct
10 Incorrect 2 ms 384 KB Output isn't correct
11 Incorrect 3 ms 384 KB Output isn't correct
12 Incorrect 3 ms 384 KB Output isn't correct
13 Incorrect 3 ms 384 KB Output isn't correct
14 Incorrect 4 ms 384 KB Output isn't correct
15 Incorrect 2 ms 384 KB Output isn't correct
16 Incorrect 18 ms 896 KB Output isn't correct
17 Incorrect 23 ms 972 KB Output isn't correct
18 Incorrect 18 ms 896 KB Output isn't correct
19 Incorrect 18 ms 896 KB Output isn't correct
20 Incorrect 11 ms 896 KB Output isn't correct
21 Incorrect 83 ms 2260 KB Output isn't correct
22 Incorrect 82 ms 2340 KB Output isn't correct
23 Incorrect 84 ms 2316 KB Output isn't correct
24 Incorrect 74 ms 2424 KB Output isn't correct
25 Incorrect 61 ms 2288 KB Output isn't correct
26 Incorrect 70 ms 2288 KB Output isn't correct
27 Incorrect 68 ms 2260 KB Output isn't correct
28 Incorrect 72 ms 2284 KB Output isn't correct
29 Incorrect 67 ms 2288 KB Output isn't correct
30 Incorrect 40 ms 2288 KB Output isn't correct
31 Incorrect 3 ms 384 KB Output isn't correct
32 Incorrect 2 ms 384 KB Output isn't correct
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 384 KB Output isn't correct
2 Incorrect 2 ms 384 KB Output isn't correct
3 Incorrect 2 ms 384 KB Output isn't correct
4 Incorrect 2 ms 384 KB Output isn't correct
5 Correct 2 ms 384 KB Output is correct
6 Incorrect 2 ms 384 KB Output isn't correct
7 Incorrect 2 ms 384 KB Output isn't correct
8 Incorrect 2 ms 384 KB Output isn't correct
9 Incorrect 2 ms 384 KB Output isn't correct
10 Incorrect 2 ms 384 KB Output isn't correct
11 Incorrect 3 ms 384 KB Output isn't correct
12 Incorrect 3 ms 384 KB Output isn't correct
13 Incorrect 3 ms 384 KB Output isn't correct
14 Incorrect 3 ms 384 KB Output isn't correct
15 Correct 3 ms 384 KB Output is correct
16 Incorrect 19 ms 896 KB Output isn't correct
17 Incorrect 20 ms 896 KB Output isn't correct
18 Incorrect 19 ms 896 KB Output isn't correct
19 Incorrect 18 ms 1024 KB Output isn't correct
20 Incorrect 14 ms 896 KB Output isn't correct
21 Incorrect 66 ms 2340 KB Output isn't correct
22 Incorrect 69 ms 2288 KB Output isn't correct
23 Incorrect 67 ms 2288 KB Output isn't correct
24 Incorrect 68 ms 2288 KB Output isn't correct
25 Correct 67 ms 2288 KB Output is correct
26 Incorrect 126 ms 2264 KB Output isn't correct
27 Incorrect 75 ms 2464 KB Output isn't correct
28 Incorrect 67 ms 2288 KB Output isn't correct
29 Incorrect 71 ms 2288 KB Output isn't correct
30 Incorrect 58 ms 2288 KB Output isn't correct
31 Incorrect 2 ms 384 KB Output isn't correct
32 Incorrect 2 ms 384 KB Output isn't correct