Compilare: user.cpp: In function ‘bool verif(int)’: user.cpp:149:44: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(nr == n || l >= xmax - xmin && l >= ymax - ymin) ^ user.cpp: In function ‘int main()’: user.cpp:175:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:178:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &v[i].x, &v[i].y); ^