Submission #897481

#	Time	Username	Problem	Language	Result	Execution time	Memory
897481		Muhammad_Aneeq	웜뱃 (IOI13_wombats)	C++17	Compilation error	0 ms	0 KiB

wombats

#include <queue>
// #include "wombats.h"
#include <algorithm>
using namespace std;
int costy[5000][200],costx[5000][200];
int r,c;
void init(int R, int C, int H[5000][200], int V[5000][200])
{
	r=R;
	c=C;
	for (int i=0;i<C-1;i++)
		for (int j=0;j<R;j++)
			costx[j][i]=H[j][i];
	for (int i=0;i<R-1;i++)
		for (int j=0;j<C;j++)
			costy[i][j]=V[i][j];
}
int dist[5000][200]={};
bool check(int i,int j)
{
	if (i>=0&&i<r&&j>=0&&j<c)
		return 1;
	return 0;
}
void bfs(int i,int j)
{
	queue<pair<int,int>>Q;
	Q.push({i,j});
	dist[i][j]=0;
	while (Q.size())
	{
		int x,y;
		tie(x,y)=Q.front();
		Q.pop();
		if (check(x+1,y))
			if (dist[x+1][y]>dist[x][y]+costy[x][y])
			{
				dist[x+1][y]=dist[x][y]+costy[x][y];
				Q.push({x+1,y});
			}
		if (check(x,y+1))
			if (dist[x][y+1]>dist[x][y]+costx[x][y])
				{
					dist[x][y+1]=dist[x][y]+costx[x][y];
					Q.push({x,y+1});
				}
		if (check(x,y-1))
			if (dist[x][y-1]>dist[x][y]+costx[x][y-1])
				{
					dist[x][y-1]=dist[x][y]+costx[x][y-1];
					Q.push({x,y-1});
				}
	}
}
void changeH(int P, int Q, int W)
{
	costx[P][Q]=W;
}
void changeV(int P, int Q, int W)
{
	costy[P][Q]=W;
}
int escape(int V1, int V2)
{
	if (c==1)
	{
		int ans=0;
		for (int i=min(V1,V2);i<=max(V1,V2);i++)
			ans+=costx[0][i];
		ans-=costx[0][V2];
		return ans;
	}
	for (int i=0;i<r;i++)
		for (int j=0;j<c;j++)
			dist[i][j]=1e9+10;
	bfs(0,V1);
	return dist[r-1][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]
   15 |  int res;
      |      ^~~
/usr/bin/ld: /tmp/ccvpnE2T.o: in function `main':
grader.c:(.text.startup+0x129): undefined reference to `init'
/usr/bin/ld: grader.c:(.text.startup+0x194): undefined reference to `escape'
/usr/bin/ld: grader.c:(.text.startup+0x203): undefined reference to `changeH'
/usr/bin/ld: grader.c:(.text.startup+0x26d): undefined reference to `changeV'
collect2: error: ld returned 1 exit status