/in/foo.cc: In function 'int main()':
/in/foo.cc:16:21: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
 printf("%d\n",cxk[i]);
                     ^
/in/foo.cc:9:5: warning: unused variable 't' [-Wunused-variable]
 int t=cxk[i];
     ^