#include <stdio.h>#define caracter '*'
void afiseazaTriunghi(int n){ int i, j; char a[n][n];
for(i = 0; i < n; i++) for(j = 0; j < n; j++) a[i][j] = ' ';
for(i = 0; i < n; i++) { a[i][0] = caracter; a[0][i] = caracter; a[n - 1 - i][i] = caracter; }
for(i = 0; i < n; i++) { for(j = 0; j < n; j++) printf("%c", a[i][j]); printf("\n"); }}
int main(){ int n; printf("Dati lungimea laturii:"); scanf("%d", &n);
if(n >= 1 && n <= 10) afiseazaTriunghi(n); else printf("Numar invalid.");}