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all_index.cpp
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52 lines (50 loc) · 896 Bytes
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#include <iostream>
#include<vector>
using namespace std;
int all_index(int arr[],int size,int info,int v2[])
{
//cout<<add<<endl;
//cout<<arr[0]<<endl;
if(size==0)
{
return 0;
}
int output=all_index((arr+1),(size-1),info,v2);
//cout<<" "<<sm<<" ";
for(int i=0;i<output;i++)
{
v2[i]++;
}
if(arr[0]==info)
{
//cout<<v2.size();
for(int i=output;i>0;i--)
{
//cout<<endl<<"*"<<i<<endl;
v2[i]=v2[i-1];
}
v2[0]=0;
output++;
}
return (output);
// return sm;
}
int main()
{
int n,info;
cin>>n;
int arr[n];
int v1[n];
for(int i=0;i<n;i++)
{
cin>>arr[i];
}
cin>>info;
int len= all_index(arr,n,info,v1);
cout<<"\n"<<len<<endl;
for(int i=0;i<len;i++)
{
cout<<++v1[i]<<" ";
}
return 0;
}