View Compilation Error

0_0_7721297_2850.cpp:2:17: stdlib: No such file or directory
0_0_7721297_2850.cpp:24: error: conflicting declaration 'int pos[100100]'
0_0_7721297_2850.cpp:13: error: 'pos' has a previous declaration as `Pos pos[100100]'
0_0_7721297_2850.cpp:24: error: type mismatch with previous external decl of `int pos[100100]'
0_0_7721297_2850.cpp:13: error: previous external decl of `Pos pos[100100]'
0_0_7721297_2850.cpp:24: error: declaration of `int pos[100100]'
0_0_7721297_2850.cpp:13: error: conflicts with previous declaration `Pos pos[100100]'
0_0_7721297_2850.cpp: In function `int main()':
0_0_7721297_2850.cpp:59: error: no `operator++(int)' declared for postfix `++', trying prefix operator instead
0_0_7721297_2850.cpp:59: error: no match for 'operator++' in '++pos[i]'
0_0_7721297_2850.cpp:64: error: cannot convert `Pos' to `int' for argument `2' to `int findpos(int, int)'