Eroare de compilare: user.cpp: In function ‘int cmmdc(int, int)’: user.cpp:9:24: error: ‘gcd’ was not declared in this scope return gcd(b, a % b); ^ user.cpp:10:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:19:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(input, "%d", &n); ^ user.cpp:22:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(input, "%d %d", &a, &b); ^