View Compilation Error

0_0_17866168_4180.cpp: In function 'void solve(int)':
0_0_17866168_4180.cpp:30:12: error: 'p' was not declared in this scope
         if(p[i] == i) cont++;
            ^
0_0_17866168_4180.cpp: In function 'void solve2(int, int)':
0_0_17866168_4180.cpp:43:12: error: 'f' was not declared in this scope
         if(f[i] == i) cont++;
            ^