0_0_20234749_9960.cpp: In function 'int main()': 0_0_20234749_9960.cpp:14:26: error: too few arguments to function 'int gcd(int, int)' cout<<a+b-gcd(a*b); ^ 0_0_20234749_9960.cpp:5:5: note: declared here int gcd(int a,int b) ^