View Compilation Error

0_0_39313907_17218.cpp: In function 'int main()':
0_0_39313907_17218.cpp:6:17: error: 'maxx' was not declared in this scope
    6 |         int n,m;maxx=0,x=1,y=1,a;
      |                 ^~~~
0_0_39313907_17218.cpp:6:24: error: 'x' was not declared in this scope
    6 |         int n,m;maxx=0,x=1,y=1,a;
      |                        ^
0_0_39313907_17218.cpp:6:28: error: 'y' was not declared in this scope
    6 |         int n,m;maxx=0,x=1,y=1,a;
      |                            ^
0_0_39313907_17218.cpp:6:32: error: 'a' was not declared in this scope
    6 |         int n,m;maxx=0,x=1,y=1,a;
      |                                ^