View Compilation Error

0_0_23181387_14367.cpp:3:14: error: '_Bool' does not name a type
 #define bool _Bool
              ^
0_0_23181387_14367.cpp:9:1: note: in expansion of macro 'bool'
 bool rightmove(int index1)
 ^
0_0_23181387_14367.cpp:3:14: error: '_Bool' does not name a type
 #define bool _Bool
              ^
0_0_23181387_14367.cpp:19:1: note: in expansion of macro 'bool'
 bool leftmove(int index1)
 ^
0_0_23181387_14367.cpp: In function 'int main()':
0_0_23181387_14367.cpp:50:24: error: 'leftmove' was not declared in this scope
     else if( leftmove(i) ) ans+=50;
                        ^
0_0_23181387_14367.cpp:53:25: error: 'rightmove' was not declared in this scope
     else if( rightmove(i) ) ans+=50;
                         ^
0_0_23181387_14367.cpp:57:19: error: 'leftmove' was not declared in this scope
     if( leftmove(i) ) ans+=100;
                   ^
0_0_23181387_14367.cpp:62:20: error: 'rightmove' was not declared in this scope
     if( rightmove(i) ) ans+=100;
                    ^