Compilare: main.cpp: In function 'int main()': main.cpp:38:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (pr[k]>i) ^~ main.cpp:40:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' if (i%pr[k]==0) ^~ 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("nasa.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("nasa.out","w",stdout); ^ main.cpp:28:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&a,&b); ^