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    计算1/1-1/2+1/3-1/4+1/5......+1/99-1/100的值并打印结果。

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    • 150930
      150930 last edited by

      #include<stdio.h>
      int main()
      {int i,k=1;
      double sum=0.0;
      for(i=1;i<=100;i++)
      {sum=sum+k*1.0/i;
      k=-k;}

      printf( " %lf",sum);
      return 0;

      }

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