Compilare: user.cpp: In function ‘void solv(int)’: user.cpp:16:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp: In function ‘int main()’: user.cpp:51:13: warning: unused variable ‘j’ [-Wunused-variable] int k,i,j=-1,m=0,x,l2=0,p,te,ok=0; ^ user.cpp:51:18: warning: unused variable ‘m’ [-Wunused-variable] int k,i,j=-1,m=0,x,l2=0,p,te,ok=0; ^ user.cpp:51:24: warning: unused variable ‘l2’ [-Wunused-variable] int k,i,j=-1,m=0,x,l2=0,p,te,ok=0; ^ user.cpp:51:29: warning: unused variable ‘p’ [-Wunused-variable] int k,i,j=-1,m=0,x,l2=0,p,te,ok=0; ^ user.cpp:51:31: warning: unused variable ‘te’ [-Wunused-variable] int k,i,j=-1,m=0,x,l2=0,p,te,ok=0; ^ user.cpp:51:34: warning: unused variable ‘ok’ [-Wunused-variable] int k,i,j=-1,m=0,x,l2=0,p,te,ok=0; ^ user.cpp:49:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("romania.in","r",stdin); ^ user.cpp:50:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("romania.out","w",stdout); ^ user.cpp:53:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^ user.cpp:56:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^