답안 #602291

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
602291	2022-07-22T20:48:27 Z	IvanJ	Self Study (JOI22_ho_t2)	C++17	0 / 100	299 ms	8396 KB

Main

#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

const int maxn = 3e5 + 5;

int n, m;
int A[maxn], B[maxn];

int check(ll x) {
	ll ret = 0;
	for(int i = 0;i < n;i++) {
		ll a = (ll)max(A[i], B[i]) * m;
		if(x > a) ret -= (ll)(x - a + B[i] - 1) / B[i];
		else ret += (ll)(a - x) / max(A[i], B[i]);
	}
	return ret >= 0;
}

int main() {
	scanf("%d%d", &n, &m);
	for(int i = 0;i < n;i++) scanf("%d", A + i);
	for(int i = 0;i < n;i++) scanf("%d", B + i);
	
	ll lo = 0, hi = 1e18, ans = -1;
	while(lo <= hi) {
		ll mid = (lo + hi) / 2;
		if(check(mid)) 
			ans = mid, lo = mid + 1;
		else hi = mid - 1;
	}
	printf("%lld\n", ans);
	return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:23:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |  scanf("%d%d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~
Main.cpp:24:32: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |  for(int i = 0;i < n;i++) scanf("%d", A + i);
      |                           ~~~~~^~~~~~~~~~~~~
Main.cpp:25:32: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |  for(int i = 0;i < n;i++) scanf("%d", B + i);
      |                           ~~~~~^~~~~~~~~~~~~

Subtask #1

0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	308 KB	Output is correct
5	Correct	0 ms	304 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	3 ms	340 KB	Output is correct
11	Correct	162 ms	8388 KB	Output is correct
12	Correct	163 ms	8396 KB	Output is correct
13	Correct	163 ms	6452 KB	Output is correct
14	Incorrect	299 ms	6436 KB	Output isn't correct
15	Halted	0 ms	0 KB	-

Subtask #2

0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	308 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	304 KB	Output is correct
7	Correct	0 ms	308 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	83 ms	4372 KB	Output is correct
10	Correct	56 ms	2940 KB	Output is correct
11	Correct	42 ms	2328 KB	Output is correct
12	Correct	34 ms	1868 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Incorrect	5 ms	340 KB	Output isn't correct
19	Halted	0 ms	0 KB	-

Subtask #3

0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	308 KB	Output is correct
5	Correct	0 ms	304 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	3 ms	340 KB	Output is correct
11	Correct	162 ms	8388 KB	Output is correct
12	Correct	163 ms	8396 KB	Output is correct
13	Correct	163 ms	6452 KB	Output is correct
14	Incorrect	299 ms	6436 KB	Output isn't correct
15	Halted	0 ms	0 KB	-

Subtask #4

0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	308 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	304 KB	Output is correct
7	Correct	0 ms	308 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	83 ms	4372 KB	Output is correct
10	Correct	56 ms	2940 KB	Output is correct
11	Correct	42 ms	2328 KB	Output is correct
12	Correct	34 ms	1868 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Incorrect	5 ms	340 KB	Output isn't correct
19	Halted	0 ms	0 KB	-

Subtask #5

0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	308 KB	Output is correct
5	Correct	0 ms	304 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	3 ms	340 KB	Output is correct
11	Correct	162 ms	8388 KB	Output is correct
12	Correct	163 ms	8396 KB	Output is correct
13	Correct	163 ms	6452 KB	Output is correct
14	Incorrect	299 ms	6436 KB	Output isn't correct
15	Halted	0 ms	0 KB	-