View Compilation Error

0_0_17731016_11478.cpp: In function 'void doit(int, int)':
0_0_17731016_11478.cpp:54:5: error: 'pa' was not declared in this scope
     pa[I][id] = inf;
     ^
0_0_17731016_11478.cpp:54:17: error: 'inf' was not declared in this scope
     pa[I][id] = inf;
                 ^
0_0_17731016_11478.cpp: In function 'void change(int)':
0_0_17731016_11478.cpp:78:9: error: 'a1' was not declared in this scope
         a1[mm] = pa[mm][id];
         ^
0_0_17731016_11478.cpp:78:18: error: 'pa' was not declared in this scope
         a1[mm] = pa[mm][id];
                  ^