Compilare: user.cpp: In function ‘int main()’: user.cpp:10:24: warning: too many arguments for format [-Wformat-extra-args] scanf("%d",&t,&n,&k); ^ user.cpp:8:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("piese2.in","r",stdin); ^ user.cpp:9:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("piese2.out","w",stdout); ^ user.cpp:10:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t,&n,&k); ^ user.cpp:17:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&aux1,&aux2); ^ user.cpp:20:9: warning: ‘sum’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(sum%2) ^