Compilare: main.cpp: In function 'int main()': main.cpp:34:23: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=] scanf("%d%d",&n,&m); ^ main.cpp:34:23: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=] main.cpp:31:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ubergraf.in","r",stdin); ^ main.cpp:32:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ubergraf.out","w",stdout); ^ main.cpp:34:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^