Main.cc: In function 'int main()': Main.cc:6:13: error: redeclaration of 'int ge' int ge=i/100; ^ Main.cc:5:7: note: 'int ge' previously declared here int ge, shi, bai; ^ Main.cc:7:13: error: redeclaration of 'int shi' int shi=i%100/10; ^ Main.cc:5:11: note: 'int shi' previously declared here int ge, shi, bai; ^ Main.cc:8:13: error: redeclaration of 'int bai' int bai=i%100/100; ^ Main.cc:5:16: note: 'int bai' previously declared here int ge, shi, bai; ^