Submission #676993

#	Time	Username	Problem	Language	Result	Execution time	Memory
676993		penguin133	Collecting Stamps 3 (JOI20_ho_t3)	C++17	0 / 100	1 ms	324 KiB

ho_t3

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif

int n, l, A[205], B[205];

int mx = 0;

void solve(){
	cin >> n >> l;
	for(int i=1;i<=n;i++)cin >> A[i];
	for(int i=1;i<=n;i++)cin >> B[i];
	int cur = 0;
	for(int i=1;i<=n;i++){
		if(B[i] >= A[i])cur++;
	}
	mx = max(mx, cur);
	cur = 0;
	for(int i=n;i>=1;i--){
		if(B[i] >= l - A[i])cur++;
	}
	mx = max(mx, cur);
	cur = 0;
	for(int i=1;i<=n;i++){
		if(B[i] >= A[i])cur++;
		int t = 2 * A[i];
		int cur2 = 0;
		for(int j=n;j>i;j--){
			if(B[j] >= l - A[j] + t)cur2++;
		}
		mx = max(mx, cur + cur2);
	}
	cur = 0;
	for(int i=n;i>=1;i--){
		int cur2 = 0;
		if(B[i] >= l - A[i])cur++;
		int t = 2 * (l - A[i]);
		for(int j=1;j<i;j++){
			if(B[j] >= A[j] + t)cur2++;
		}
		mx = max(mx, cur + cur2);
	}
	cout << mx;
}

main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int tc = 1;
	//cin >> tc;
	for(int tc1=1;tc1<=tc;tc1++){
		// cout << "Case #" << tc1 << ": ";
		solve();
	}
}

Compilation message (stderr)

ho_t3.cpp:54:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   54 | main(){
      | ^~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 75