Compilare: main.cpp: In function 'int main()': main.cpp:53:13: warning: unused variable 'st' [-Wunused-variable] int n,x,st,dr,l; ^~ main.cpp:53:16: warning: unused variable 'dr' [-Wunused-variable] int n,x,st,dr,l; ^~ main.cpp:53:19: warning: unused variable 'l' [-Wunused-variable] int n,x,st,dr,l; ^ main.cpp:51:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("secvente2.in","r",stdin); ^ main.cpp:52:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("secvente2.out","w",stdout); ^ main.cpp:54:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:63:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^