C++ :
#include<bits/stdc++.h> using namespace std; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ if(j==1||j==n)cout<<"+"; else{ if(i==j)cout<<"+"; else cout<<"-"; } } cout<<"\n"; } }
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