foo.cc: In function 'int main()':
foo.cc:6:8: error: invalid operands of types 'double' and 'int' to binary 'operator%'
 int a=n%10;
       ~^~~
foo.cc:7:11: error: invalid operands of types 'double' and 'int' to binary 'operator%'
 int b=n/10%10;
       ~~~~^~~

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