View Compilation Error

0_0_17574762_17281.cpp:9:1: error: 'bootu' does not name a type
 bootu used[300];
 ^
0_0_17574762_17281.cpp: In function 'void dfs(int, int, int)':
0_0_17574762_17281.cpp:20:35: error: 'used' was not declared in this scope
         while(nextuse<stickmax && used[nextuse])
                                   ^
0_0_17574762_17281.cpp:24:9: error: 'used' was not declared in this scope
         used[nextuse]=true;
         ^
0_0_17574762_17281.cpp:32:9: error: 'used' was not declared in this scope
         used[nextuse]=true;
         ^
0_0_17574762_17281.cpp: In function 'int main()':
0_0_17574762_17281.cpp:55:13: error: 'used' was not declared in this scope
             used[i]=false;
             ^