View Compilation Error

0_0_37452171_16549.cpp: In function 'int main()':
0_0_37452171_16549.cpp:110:12: error: 'pos' was not declared in this scope
    put(ans[pos[j]]),pc;
            ^
0_0_37452171_16549.cpp:119:12: error: 'pos' was not declared in this scope
    put(ans[pos[s[j]]]),pc;
            ^