Compilare: main.cpp: In function 'int main()': main.cpp:11:19: warning: format '%ld' expects argument of type 'long int*', but argument 2 has type 'long long int*' [-Wformat=] scanf("%ld",&n); ^ main.cpp:25:19: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'long long int' [-Wformat=] printf("%ld",r); ^ main.cpp:9:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("100m.in","r",stdin); ^ main.cpp:10:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("100m.out","w",stdout); ^ main.cpp:11:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%ld",&n); ^