Compilare: user.cpp: In function ‘void rezolva()’: user.cpp:34:11: warning: unused variable ‘nod’ [-Wunused-variable] int i,nod,poz,cur=0; ^ user.cpp:37:9: warning: unused variable ‘rx’ [-Wunused-variable] int rx=x,ry=y,rz=z,sm=-4; ^ user.cpp:37:14: warning: unused variable ‘ry’ [-Wunused-variable] int rx=x,ry=y,rz=z,sm=-4; ^ user.cpp:37:19: warning: unused variable ‘rz’ [-Wunused-variable] int rx=x,ry=y,rz=z,sm=-4; ^ user.cpp:37:24: warning: unused variable ‘sm’ [-Wunused-variable] int rx=x,ry=y,rz=z,sm=-4; ^ user.cpp: In function ‘int main()’: user.cpp:109:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("arbxyz.in","r",stdin); ^ user.cpp:110:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("arbxyz.out","w",stdout); ^ user.cpp:111:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp: In function ‘void rezolva()’: user.cpp:36:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&n,&x,&y,&z); ^ user.cpp:48:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n1,&n2); ^