0_0_21775855_23619.cpp:5:7: error: 'maxn' was not declared in this scope
int a[maxn];
^
0_0_21775855_23619.cpp: In function 'int main()':
0_0_21775855_23619.cpp:19:17: error: 'a' was not declared in this scope
a[j++]=x%10;//倒着存取
^
0_0_21775855_23619.cpp:24:23: error: 'a' was not declared in this scope
c=c*y+a[i];
^
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