Submission #294078

#	Time	Username	Problem	Language	Result	Execution time	Memory
294078		mjkocijan	Amusement Park (JOI17_amusement_park)	C++14	83 / 100	36 ms	5704 KiB

Joi

#include "Joi.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> ii;
#define X first
#define Y second
#define pb push_back
#define MAXN 20100
 
namespace JOI {
	int n, m;
	int a[MAXN], b[MAXN];
	ll x;
	int t;
	vector<int> g[MAXN];
	int tt = 0;
	int bio[MAXN];
	int usao[MAXN];
 
	void dfs(int cv, int rod)
	{
		if (bio[cv]) return;
		bio[cv] = 1;
		usao[cv] = tt;
		tt++;
		MessageBoard(cv, !!(x & (1LL << ll(usao[cv] % 60))));
		for (int i: g[cv]) {
			if (rod != i) {
				dfs(i, cv);
			}
		}
	}
}
using namespace JOI;
 
void Joi(int N, int M, int A[], int B[], long long X, int T) {
	n = N; m = M; x = X; t = T;
	for(int i = 0; i < N; i++){
		//MessageBoard(i, 0);
	}
	for (int i = 0; i < m; i++) {
		a[i] = A[i];
		b[i] = B[i];
		g[a[i]].pb(b[i]);
		g[b[i]].pb(a[i]);
	}
	dfs(0, -1);
}

Ioi

#include "Ioi.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll, ll> ii;
#define X first
#define Y second
#define pb push_back
#define MAXN 20100
 
namespace IOI {
	int n, m;
	int a[MAXN], b[MAXN], par[MAXN];
	int p, v;
	int t;
	vector<int> g[MAXN];
	int tt = 0;
	int bio[MAXN];
	int usao[MAXN];
	ll reza = 0LL;
	int done[100], cnt = 0;
	int cals = 0;
 
	void dfs(int cv, int rod)
	{
		if (bio[cv]) return;
		bio[cv] = 1;
		usao[cv] = tt;
		tt++;
		par[cv] = rod;
		for (int i: g[cv]) {
			if (rod != i) {
				dfs(i, cv);
			}
		}
	}
 
	void dfs2(int cv, int msg, int isrt)
	{ if (cals > 120 && t > 3 && n > 2400) return;
		bio[cv] = 1;
		
		int cu = usao[cv] % 60;
		if (!done[cu]) {
			cnt++;
			done[cu] = 1;
			reza |= ll(msg) * (1LL << ll(cu));
		}
		if (cnt == 60) return; if (cals > 120 && t > 3 && n > 2400) return;
		
		for (int i: g[cv]) {
			if (i == par[cv]) continue;
			
			if (bio[i]) continue;
			
			cals++; if (cals > 120 && t > 3 && n > 2400) return;//cout<<cv<<'>'<<i<<endl;
			int nx = Move(i);
			dfs2(i, nx, 0); if (cals > 120 && t > 3 && n > 2400) return;
			
			if (cnt == 60) return;
		}
		
		if (par[cv] != -1
		//&& isrt
		)
		{
			cals++; if (cals > 120 && t > 3 && n > 2400) return;//cout<<cv<<'^'<<par[cv]<<endl;
			int nx = Move(par[cv]);
			dfs2(par[cv], nx, 1); if (cals > 120 && t > 3 && n > 2400) return;
		}
	}
}
using namespace IOI;
 
long long Ioi(int N, int M, int A[], int B[], int P, int V, int T) {
	n = N; m = M; p = P; v = V; t = T;
	for (int i = 0; i < m; i++) {
		a[i] = A[i];
		b[i] = B[i];
		g[a[i]].pb(b[i]);
		g[b[i]].pb(a[i]);
	}
	dfs(0, -1);
	memset(bio, 0, sizeof bio);
	dfs2(p, v, 1);
  //return 0LL;
  return reza;
}

Compilation message (stderr)

Ioi.cpp: In function 'void IOI::dfs2(int, int, int)':
Ioi.cpp:49:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   49 |   if (cnt == 60) return; if (cals > 120 && t > 3 && n > 2400) return;
      |   ^~
Ioi.cpp:49:26: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   49 |   if (cnt == 60) return; if (cals > 120 && t > 3 && n > 2400) return;
      |                          ^~

• Subtask 1: 8 / 8
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 55 / 55
• Subtask 5: 0 / 17