#include <stdio.h>
int main(void) {
int n;
printf("Enter the number of rows: ");
int nst=1;
int nsp=n/2;
int ml=n/2+1;
for(int i=1;i<=n;i++){
for(int j=1;j<=ml-1;j++){
}
for(int k=1;k<=nst;k++){
}
if(i<ml){
nst+=2;
nsp--;
}
else{
nst-=2;
nsp++;
}
}
return 0;
}
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