Compilare: main.cpp: In function 'int main()': main.cpp:13:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=q;i++) ^~~ main.cpp:15:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' b=1; ^ main.cpp:7:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("gfact.in","r",stdin); ^ main.cpp:8:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("gfact.out","w",stdout); ^ main.cpp:10:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&p); ^ main.cpp:11:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&q); ^ main.cpp:16:14: warning: 'n' may be used uninitialized in this function [-Wmaybe-uninitialized] for(i=1;i<=n;i++) ~^~~