Submission #7338816

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Source Code Expand

// luogu-judger-enable-o2#include<bits/stdc++.h>
using namespace std;
int flag[101];
int a,b,tot=101;
inline void dfs(int n,int temp)
{
    if(n>40||n<0||flag[n]==1)
		return;
    if(temp>tot)
		return;
    if(n==b)
	{
		if(tot>temp)tot=temp;
		return ;
	}
    flag[n]=1;
    dfs(n+1,temp+1);
    dfs(n-1,temp+1);
    dfs(n+5,temp+1);
    dfs(n-5,temp+1);
    dfs(n+10,temp+1);
    dfs(n-10,temp+1);
    flag[n]=0;
}
int main()
{
	scanf("%d%d",&a,&b);
	dfs(a,0);
	printf("%d\n",tot);
	return 0;
}
#include<bits/stdc++.h>
using namespace std;
int cont[6]={1,5,10,-1,-5,-10},flag[1001];
int a,b,tot=1001;
void dfs(int n,int temp)
{
    if(n>40||n<0||flag[n]==1)
		return;
    if(temp>tot)
		return;
    if(n==b)
	{
		if(tot>temp)tot=temp;
		return ;
	}
    flag[n]=1;
    dfs(n+1,temp+1);
    dfs(n-1,temp+1);
    dfs(n+5,temp+1);
    dfs(n-5,temp+1);
    dfs(n+10,temp+1);
    dfs(n-10,temp+1);
    flag[n]=0;
}
int main()
{
	scanf("%d%d",&a,&b);
	dfs(a,0);
	cout<<tot<<endl;
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:27:20: error: ‘scanf’ was not declared in this scope
  scanf("%d%d",&a,&b);
                    ^
./Main.cpp:29:19: error: ‘printf’ was not declared in this scope
  printf("%d\n",tot);
                   ^
./Main.cpp: At global scope:
./Main.cpp:34:41: error: conflicting declaration ‘int flag [1001]’
 int cont[6]={1,5,10,-1,-5,-10},flag[1001];
                                         ^
./Main.cpp:3:5: note: previous declaration as ‘int flag [101]’
 int flag[101];
     ^
./Main.cpp:35:5: error: redefinition of ‘int a’
 int a,b,tot=1001;
     ^
./Main.cpp:4:5: note: ‘int a’ previously declared here
 int a,b,tot=101;
     ^
./Main.cpp:35:7: error: redefinition of ‘int b’
 int a,b,tot=1001;
       ^
./Main.cpp:4:7: note: ‘int b’ previously declared here
 int a,b,tot=101;
       ^
./Main.cpp:35:9: error: redefinition of ‘int tot’
 int a,b,tot=1001;
         ^
./Main.cpp:4:9: note: ‘int tot’ previously defined here
 int a,b,tot=101;
         ^
./Main.cpp: In function...