Compilare: user.cpp: In function ‘int main()’: user.cpp:48:12: warning: unused variable ‘a’ [-Wunused-variable] long long a,b,i,n,x,y1,y2,nr1=0,nr2=0,lungime1=0,lungime2=0; ^ user.cpp:48:14: warning: unused variable ‘b’ [-Wunused-variable] long long a,b,i,n,x,y1,y2,nr1=0,nr2=0,lungime1=0,lungime2=0; ^ user.cpp:48:40: warning: unused variable ‘lungime1’ [-Wunused-variable] long long a,b,i,n,x,y1,y2,nr1=0,nr2=0,lungime1=0,lungime2=0; ^ user.cpp:48:51: warning: unused variable ‘lungime2’ [-Wunused-variable] long long a,b,i,n,x,y1,y2,nr1=0,nr2=0,lungime1=0,lungime2=0; ^ user.cpp:57:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld",&n); ^ user.cpp:61:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld%lld%lld",&x,&y1,&y2); ^