submult.cpp: In function 'int main()': submult.cpp:7: error: 'sum' was not declared in this scope submult.cpp:7: error: expected primary-expression before '}' token submult.cpp:7: error: expected ';' before '}' token submult.cpp:9: error: expected ';' before 'return' submult.cpp:9: warning: statement has no effect