Compilare: user.cpp: In function ‘int main()’: user.cpp:59:14: warning: unused variable ‘t’ [-Wunused-variable] int nrc=0,t=0,x[100001],nr=0,y[100001]; ^ user.cpp:59:28: warning: unused variable ‘nr’ [-Wunused-variable] int nrc=0,t=0,x[100001],nr=0,y[100001]; ^ user.cpp:59:33: warning: unused variable ‘y’ [-Wunused-variable] int nrc=0,t=0,x[100001],nr=0,y[100001]; ^ user.cpp: In function ‘void creare()’: user.cpp:18:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d",&n,&m); ^ user.cpp:23:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d",&a,&b); ^