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  1. #include<stdio.h>
  2. int comb(int n,int r)
  3. { if(r==0||n==r) return 1;
  4. else return comb(n-1,r-1)+comb(n-1,r); }
  5.  
  6. int main()
  7. { int x,y;
  8. scanf("%d".&x);
  9. scanf("%d",&y);
  10. z=x+y;
  11. printf("%d",comb(z,x));
  12. return 0;
  13. }
Success #stdin #stdout 0.01s 5284KB
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stdin
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5
5
stdout
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100999897969594939291908988878685848382818079787776757473727170696867666564636261605958575655545352515049484746454443424140393837363534333231302928272625242322212019181716151413121110987654321
https://ideone.com/Wlbg8a
language:
C (gcc 8.3)
created:
46 days ago
visibility:
public

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