Compilare: main.cpp: In function 'int main()': main.cpp:29:33: warning: format '%lld' expects argument of type 'long long int*', but argument 4 has type 'int*' [-Wformat=] fscanf(in, "%lld %lld", &n, &m) ; ^ main.cpp:29:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%lld %lld", &n, &m) ; ^ main.cpp:31:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%lld", &num) ; ^