View Compilation Error

0_0_34536113_17621.cpp: In function 'int main()':
0_0_34536113_17621.cpp:48:16: error: 'x' was not declared in this scope
    scanf("%d",&x);
                ^
0_0_34536113_17621.cpp:53:16: error: 'x' was not declared in this scope
    scanf("%d",&x);
                ^