511665_0_0_31731.c: In function `main':
511665_0_0_31731.c:17: error: syntax error before '/' token
511665_0_0_31731.c:31: error: syntax error before '/' token
511665_0_0_31731.c: At top level:
511665_0_0_31731.c:42: error: `x' undeclared here (not in a function)
511665_0_0_31731.c:42: error: `y' undeclared here (not in a function)
511665_0_0_31731.c:43: error: redefinition of 'sum'
511665_0_0_31731.c:42: error: previous definition of 'sum' was here
511665_0_0_31731.c:43: error: initializer element is not constant
511665_0_0_31731.c:44: error: syntax error before string constant
511665_0_0_31731.c:44: error: conflicting types for 'printf'
511665_0_0_31731.c:44: note: a parameter list with an ellipsis can't match an empty parameter name list declaration
511665_0_0_31731.c:44: error: conflicting types for 'printf'
511665_0_0_31731.c:44: note: a parameter list with an ellipsis can't match an empty parameter name list declaration
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