0_0_39497176_4015.cpp: In function 'int re()': 0_0_39497176_4015.cpp:8:26: error: redeclaration of 'int x' 8 | char c=getchar();int x=0; | ^ 0_0_39497176_4015.cpp:7:9: note: 'int x' previously declared here 7 | int x;scanf("%d",&x);return x; | ^