0_0_28223601_7255.cpp: In function 'int main()': 0_0_28223601_7255.cpp:26:22: error: 'x' was not declared in this scope mmax=max(max(mmax,x),y); ^ 0_0_28223601_7255.cpp:26:25: error: 'y' was not declared in this scope mmax=max(max(mmax,x),y); ^