최소정수의합/김유정

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~cpp
#include <stdio.h>  
main()  
{  
  int sum;
  int n;

  sum=0;
  n=1;
  while (sum<=3000) {
	  sum=sum+n;
	  n=n+1;
  }
		  printf("n=%d,sum=%d\n",n,sum);
  
}