0_0_29413793_2337.cpp: In function 'int main()': 0_0_29413793_2337.cpp:5:12: error: 'a' was not declared in this scope while(cin>>a>>b) ^ 0_0_29413793_2337.cpp:5:15: error: 'b' was not declared in this scope while(cin>>a>>b) ^