Compilare: main.cpp: In function 'int cmmdc(long int&, long int&)': main.cpp:14:17: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while (r = a % b) ^ main.cpp: In function 'int main()': main.cpp:32:30: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long int*' [-Wformat=] fscanf(fin, "%d %d", &a, &b); ^ main.cpp:32:30: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'long int*' [-Wformat=] main.cpp:28:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &T); ^ main.cpp:32:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &a, &b); ^