Compilare: user.cpp: In function ‘int main()’: user.cpp:7:13: warning: unused variable ‘j’ [-Wunused-variable] int s,d,j,i,cop,p,dr; ^ user.cpp:11:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&s,&dr); ^ user.cpp:42:33: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(g,"%d %d %d",a,max,c); ^ user.cpp:41:8: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] c--; ^