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Feb 25th, 2018
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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. struct Student
  4. {
  5. char name[100],department[100];
  6. int roll,batch;
  7. };
  8. Student info[1000000];
  9. bool compare(Student a,Student b)
  10. {
  11. if(strcmp(a.department,b.department)<0)
  12. return true;
  13. if(strcmp(a.department,b.department)==0)
  14. {
  15. if(a.batch<b.batch)
  16. return true;
  17. if(a.batch==b.batch)
  18. {
  19. if(a.roll<b.roll)
  20. return true;
  21. }
  22. }
  23. return false;
  24. }
  25. int main()
  26. {
  27. int n,i;
  28. scanf("%d",&n);
  29. for(i=0; i<n; i++)
  30. {
  31. scanf("%s%d%s%d",&info[i].name,&info[i].roll,&info[i].department,&info[i].batch);
  32. }
  33. sort(info,info+n,compare);
  34. for(i=0; i<n; i++)
  35. {
  36. printf("%s %d %s %d\n",info[i].name,info[i].roll,info[i].department,info[i].batch);
  37. }
  38. return 0;
  39. }
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