Compilare: main.cpp:3:5: warning: second argument of 'int main(int, int)' should be 'char **' [-Wmain] int main(int a, int b) ^~~~ main.cpp: In function 'int main(int, int)': main.cpp:5:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cmmdc.in", "r", stdin); ^ main.cpp:6:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cmmdc.out", "w", stdout); ^ main.cpp:7:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &a, &b); ^