oj.uz

Submission #1002830

# Submission time Handle Problem Language Result Execution time Memory
1002830 2024-06-19T20:21:24 Z Tob Gap (APIO16_gap) C++14
89.0376 / 100
 37 ms 3276 KB 
#include <bits/stdc++.h>

#include "gap.h"

#define F first
#define S second
#define all(x) x.begin(), x.end()
#define pb push_back
#define FIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)

using namespace std;

typedef long long ll;
typedef pair <ll, ll> pii;
/*
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;

long long findGap(int, int);

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;
}*/

//---------------------------

const ll inf = 1e18;

ll findGap(int t, int n) {
	if (t == 1) {
		ll x = 0, y = inf;
		ll mn=0, mx=inf;
		vector <ll> v;
		for (int i = 0; i < (n+1)/2; i++) {
			MinMax(x, y, &mn, &mx);
			v.pb(mn);
			v.pb(mx);
			x = mn+1; y = mx-1;
		}
		sort(all(v)); v.erase(unique(all(v)), v.end());
		ll res = 0;
		for (int i = 1; i < n; i++) res = max(res, v[i]-v[i-1]);
		return res;
	}
	ll lo=0, hi=0;
	MinMax(0, inf, &lo, &hi);
	ll d = (hi-lo)/(n-1);
	vector <ll> v;
	v = {lo, hi};
	for (ll i = lo+1; i < hi; i += d) {
		ll a=0, b=0;
		MinMax(i, min(hi-1, i+d-1), &a, &b);
		if (a != -1) {v.pb(a); v.pb(b);}
	}
	sort(all(v)); v.erase(unique(all(v)), v.end());
	ll res = 0;
	for (int i = 1; i < v.size(); i++) res = max(res, v[i]-v[i-1]);
	return res;
}

//---------------------------
/*
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 'll findGap(int, int)':
gap.cpp:80:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |  for (int i = 1; i < v.size(); i++) res = max(res, v[i]-v[i-1]);
      |                  ~~^~~~~~~~~~

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 1 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 0 ms 344 KB Output is correct
16 Correct 6 ms 980 KB Output is correct
17 Correct 7 ms 980 KB Output is correct
18 Correct 6 ms 980 KB Output is correct
19 Correct 7 ms 1044 KB Output is correct
20 Correct 5 ms 980 KB Output is correct
21 Correct 24 ms 2340 KB Output is correct
22 Correct 25 ms 2284 KB Output is correct
23 Correct 28 ms 2256 KB Output is correct
24 Correct 27 ms 2256 KB Output is correct
25 Correct 23 ms 2256 KB Output is correct
26 Correct 32 ms 2248 KB Output is correct
27 Correct 24 ms 2256 KB Output is correct
28 Correct 29 ms 2256 KB Output is correct
29 Correct 24 ms 2256 KB Output is correct
30 Correct 21 ms 2216 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct

Subtask #2
59.037623636 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 9 ms 980 KB Output is correct
17 Correct 9 ms 980 KB Output is correct
18 Correct 7 ms 980 KB Output is correct
19 Correct 8 ms 944 KB Output is correct
20 Partially correct 4 ms 600 KB Partially correct
21 Correct 32 ms 2368 KB Output is correct
22 Correct 37 ms 2248 KB Output is correct
23 Correct 32 ms 2256 KB Output is correct
24 Correct 35 ms 2256 KB Output is correct
25 Correct 35 ms 3276 KB Output is correct
26 Correct 33 ms 2288 KB Output is correct
27 Correct 31 ms 2332 KB Output is correct
28 Correct 32 ms 2248 KB Output is correct
29 Correct 33 ms 2256 KB Output is correct
30 Partially correct 20 ms 1624 KB Partially correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 344 KB Output is correct