View Compilation Error

0_0_30271970_24742.cpp: In function 'void doit()':
0_0_30271970_24742.cpp:81:19: error: 'i' was not declared in this scope
 scanf("%d%lld",&Q[i].d,&Q[i].lim);
                   ^
0_0_30271970_24742.cpp: In function 'int main()':
0_0_30271970_24742.cpp:90:32: error: too many arguments to function 'void doit()'
         doit( (long long )1e18 );
                                ^
0_0_30271970_24742.cpp:80:6: note: declared here
 void doit(){
      ^