Submission #4187

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Source Code Expand

#include<stdio.h>
#include<queue>
using namespace std;
int bfs[50];
int main(){
	int a,b;
	scanf("%d%d",&a,&b);
	for(int i=0;i<50;i++)bfs[i]=-1;
	bfs[a]=0;
	queue<int> Q;
	Q.push(a);
	while(Q.size()){
		int at=Q.front();
		Q.pop();
		if(at>=10&&bfs[at-10]==-1){
			bfs[at-10]=bfs[at]+1;
			Q.push(at-10);
		}
		if(at>=5&&bfs[at-5]==-1){
			bfs[at-5]=bfs[at]+1;
			Q.push(at-5);
		}
		if(at>=1&&bfs[at-1]==-1){
			bfs[at-1]=bfs[at]+1;
			Q.push(at-1);
		}
		if(at+10<50&&bfs[at+10]==-1){
			bfs[at+10]=bfs[at]+1;
			Q.push(at+10);
		}
		if(at+5<50&&bfs[at+5]==-1){
			bfs[at+5]=bfs[at]+1;
			Q.push(at+5);
		}
		if(at+1<50&&bfs[at+1]==-1){
			bfs[at+1]=bfs[at]+1;
			Q.push(at+1);
		}
	}
	printf("%d\n",bfs[b]);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result

Judge Result