Compilare: user.cpp: In function ‘void task1()’: user.cpp:92:13: warning: unused variable ‘hi’ [-Wunused-variable] int i,j,hi,x1,x2,y1,y2; ^ user.cpp:93:13: warning: unused variable ‘suprem’ [-Wunused-variable] int max,suprem=1000000,nr,nrn=0; ^ user.cpp:93:28: warning: unused variable ‘nr’ [-Wunused-variable] int max,suprem=1000000,nr,nrn=0; ^ user.cpp:93:31: warning: unused variable ‘nrn’ [-Wunused-variable] int max,suprem=1000000,nr,nrn=0; ^ user.cpp: In function ‘int main()’: user.cpp:231:9: warning: unused variable ‘i’ [-Wunused-variable] int i,j; ^ user.cpp:231:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j; ^ user.cpp: In function ‘void citeste(int&, int&, int&)’: user.cpp:14:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&t); ^ user.cpp:15:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&k); ^ user.cpp:18:87: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d%d%d%d",&b[i].x1,&b[i].y1,&b[i].x2,&b[i].y2,&b[i].x3,&b[i].y3); ^