View Compilation Error

0_0_39241932_28977.cpp: In function 'int main()':
0_0_39241932_28977.cpp:7:8: error: 'm' was not declared in this scope
    7 |     if(m&&n){
      |        ^
0_0_39241932_28977.cpp:7:11: error: 'n' was not declared in this scope
    7 |     if(m&&n){
      |           ^