Submission #747630

#	Time	Username	Problem	Language	Result	Execution time	Memory
747630		Dan4Life	Space Pirate (JOI14_space_pirate)	C++17	0 / 100	2 ms	852 KiB

space_pirate

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int mxN = (int)3e3+10;
const int mxLg = 30;
const int LINF = (int)1e18+10;
int n, k, p[mxN], ans[mxN];
int dis[mxN][mxN], jmp[mxLg][mxN];

int getPath(int x, int k){
	for(int i = 0; i<mxLg; i++)
		if((k>>i)&1) x = jmp[i][x];
	return x;
}

int32_t main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n >> k;
	for(int i = 1; i <= n; i++) cin >> p[i], jmp[0][i]=p[i];
	for(int i = 1; i < mxLg; i++)
		for(int j = 1; j <= n; j++)
			jmp[i][j] = jmp[i-1][jmp[i-1][j]];
	for(int i = 1; i <= n; i++)
		for(int j = 1; j <= n; j++)
			dis[i][j] = LINF;
	for(int i = 1; i <= n; i++)
		for(int j = 0; j <= n; j++)
			if(dis[i][getPath(i,j)]==LINF) 
				dis[i][getPath(i,j)]=j;
	int def = getPath(1,k);
	for(int a = 1; a <= n; a++){
		for(int b = 1; b <= n; b++){
			if(dis[1][a]>=k) ans[def]++;
			else{
				int xd = k-dis[1][a]-1, cyc;
				if(dis[b][a]>=k) ans[getPath(b,xd)]++;
				else cyc = dis[b][a]+1, ans[getPath(b,xd%cyc)]++;
			}
		}
	}
	for(int i = 1; i <= n; i++) cout << ans[i] << "\n";
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 37
• Subtask 3: 0 / 33
• Subtask 4: 0 / 20