Submission #133863

#	Time	Username	Problem	Language	Result	Execution time	Memory
133863		arthurconmy	Wombats (IOI13_wombats)	C++14	0 / 100	235 ms	16632 KiB

wombats

#include <bits/stdc++.h>

#ifndef ARTHUR_LOCAL
	#include "wombats.h"
#endif

using namespace std;

const int INF = 1000000000;
int r=-1;
int c=-1;
int H[5000][200];
int V[5000][200];
int dis[401][401];

void init(int r_raw, int c_raw, int H_raw[5000][200], int V_raw[5000][200])
{
	r=r_raw;
	c=c_raw;

	for(int i=0; i<5000; i++)
	{
		for(int j=0; j<200; j++)
		{
			H[i][j]=H_raw[i][j];
			V[i][j]=V_raw[i][j];
		}
	}

	for(int i=0; i<=400; i++)
	{
		for(int j=0; j<=400; j++)
		{
			dis[i][j]=INF;
		}
	}

	// pre-calculate all the answers
	// Floyd-Warshall on a directed graph

	for(int i=0; i<=400; i++)
	{
		int row=int(i/c);
		int col=i%c;

		if(row>=r) break;

		// << "RC: " << row << " " << col << endl;

		if(row < r-1)
		{
			dis[i][i+c] = V[row][col];
			// cout << i << " " << i+c << " " << V[row][col] << " V" << endl;
		}

		if(col < c-1)
		{
			dis[i][i+1] = H[row][col];
			dis[i+1][i] = H[row][col];

			// cout << i << " " << i+1 << " " << H[row][col] << " H" << endl;
		}
	}

	for(int i=0; i<=400; i++)
	{
		for(int j=0; j<=400; j++)
		{
			for(int k=0; k<=400; k++)
			{
				if(max({i,j,k}) < r*c) dis[i][j] = min(dis[i][j], dis[i][k]+dis[k][j]);
			}
		}
	}
}

void changeH(int p, int q, int w)
{
	return;
}

void changeV(int p, int q, int w)
{
	return;
}

int escape(int v1, int v2)
{
	return dis[v1][(r-1)*c + v2];
}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
  int res;
      ^~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 16
• Subtask 4: 0 / 18
• Subtask 5: 0 / 21
• Subtask 6: 0 / 24