View Compilation Error

0_0_36706372_30270.cpp: In function 'int main()':
0_0_36706372_30270.cpp:11:15: error: 'height' was not declared in this scope
         while(height+u<n)
               ^
0_0_36706372_30270.cpp:14:13: error: 'time' was not declared in this scope
             time+=2;
             ^
0_0_36706372_30270.cpp:16:12: error: 'height' was not declared in this scope
         if(height+u>=n)
            ^
0_0_36706372_30270.cpp:18:13: error: 'time' was not declared in this scope
             time++;
             ^
0_0_36706372_30270.cpp:20:23: error: 'time' was not declared in this scope
         printf("%d\n",time);
                       ^
0_0_36706372_30270.cpp: At global scope:
0_0_36706372_30270.cpp:22:1: error: expected declaration before '}' token
 }
 ^