Submission #109329

# Submission time Handle Problem Language Result Execution time Memory
109329 2019-05-06T07:16:46 Z b2563125 Gap (APIO16_gap) C++14
100 / 100
89 ms 2040 KB
#include<iostream>
#include<algorithm>
#include<vector>
#include "gap.h"
using namespace std;
#define vel vector<long long>
#define ll long long
#define rep(i,n) for(__int128 i=0;i<n;i++)
int pr = 1000000007;
int ref(int &a) {
	a = a % pr;
	a += pr;
	a = a % pr;
	return a;
}
long long findGap(int t, int n) {
	if (t == 1) {
		vel a(n);
		ll mn = 0; ll mx = (pr - 7);
		mx *= mx;
		rep(i, (n + 1) / 2) {
			MinMax(mn, mx, &mn, &mx);
			a[i] = mn;
			a[n - 1 - i] = mx;
			mn++; mx--;
		}
		ll ans = 0;
		rep(i, n - 1) { ans = max(ans, a[i + 1] - a[i]); }
		return ans;
	}
	if (t == 2) {
		__int128 N = n;
		long long a1; long long an;
		long long INF = pr - 7;
		INF *= INF;
		MinMax(0, INF, &a1, &an);
		__int128 X = an - a1 + 1;
		long long now_min = a1;
		long long ans = 0;
		if (n == 2) { return an - a1; }
		N--; n--;
		rep(i, n) {
			long long mn, mx;
			__int128 j = i;
			j++;
			__int128 n1 = (X*i) / N;
			__int128 n2 = (X*j) / N;
			ll q1 = a1 + n1;
			ll q2 = a1 + n2;
			q2--;
			MinMax(q1, q2, &mn, &mx);
			if (mn != -1) {
				ans = max(mn - now_min, ans);
				now_min = mx;
			}
		}
		return ans;
	}
}

Compilation message

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:59:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 4 ms 484 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 15 ms 768 KB Output is correct
17 Correct 17 ms 768 KB Output is correct
18 Correct 18 ms 768 KB Output is correct
19 Correct 15 ms 768 KB Output is correct
20 Correct 10 ms 768 KB Output is correct
21 Correct 47 ms 1912 KB Output is correct
22 Correct 50 ms 1920 KB Output is correct
23 Correct 47 ms 1912 KB Output is correct
24 Correct 55 ms 1912 KB Output is correct
25 Correct 46 ms 1912 KB Output is correct
26 Correct 53 ms 2040 KB Output is correct
27 Correct 55 ms 2012 KB Output is correct
28 Correct 53 ms 1912 KB Output is correct
29 Correct 50 ms 1920 KB Output is correct
30 Correct 36 ms 1920 KB Output is correct
31 Correct 2 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 284 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 21 ms 512 KB Output is correct
17 Correct 22 ms 640 KB Output is correct
18 Correct 19 ms 512 KB Output is correct
19 Correct 21 ms 512 KB Output is correct
20 Correct 10 ms 512 KB Output is correct
21 Correct 74 ms 1152 KB Output is correct
22 Correct 89 ms 1272 KB Output is correct
23 Correct 73 ms 1144 KB Output is correct
24 Correct 68 ms 1144 KB Output is correct
25 Correct 57 ms 1152 KB Output is correct
26 Correct 71 ms 1144 KB Output is correct
27 Correct 67 ms 1148 KB Output is correct
28 Correct 72 ms 1144 KB Output is correct
29 Correct 68 ms 1200 KB Output is correct
30 Correct 35 ms 1152 KB Output is correct
31 Correct 2 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct