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Java箔方怏嶄銭偬n倖圷殆聞凪才恷寄 - 園殻秘壇利

作者 佚名技术 来源 NET编程 浏览 发布时间 2012-06-20
+ max);   }   else   {    System.out.println("Max sum is 0 .");   }   }   //圭隈4?扮寂鹸墫業葎O(n*logn)   public int Max4(int[] arr, int left, int right)   {   int sum = 0;   int max = 0;   int max1 = 0;   int max2 = 0;   int middle = 0;   if(left > right)   {    return 0;   }   else if(left == right)   {    return (arr[left] > 0 ? arr[left] : 0);   }   middle = (left + right)/2;   for(int i=middle; i>=left; i--)   {    sum = sum + arr[i];    if(sum > max1)    {    max1 = sum;    }   }   sum=0;   for(int i=middle+1; i<=right; i++)   {    sum = sum + arr[i];    if(sum > max2)    {    max2 = sum;    }   }   max = max1+max2;   int temp1 = Max4(arr, left, middle);   int temp2 = Max4(arr, middle+1, right);   if(temp1 > max)   {    max = temp1;   }   if(temp2 > max)   {    max = temp2;   }   return max;   }   //圭隈5?扮寂鹸墫業葎O(n)   public void Max5(int[] arr)   {   int max1 = 0;   int max2 = 0;   int left = -1;   int right = -1;   int temp = 0;   for(int i=0; i<arr.length; i++)   {    temp = (max1+arr[i]);    if(temp > 0)    {    max1 = temp;    }    else    {    left = i+1;    max1 = 0;    }    if(max1 > max2)    {    right = i;    max2 = max1;    }   }   if(right > 0)   {    System.out.println("Max is from element " + left + "(" + arr[left] + ") to element " + right + "(" + arr[right] + "), max sum is " + max2);   }   else   {    System.out.println("Max sum is 0 .");   }   } }

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Java旗鷹

Max is from element 2(59) to element 6(97), max sum is 187 Max is from element 2(59) to element 6(97), max sum is 187 Max is from element 2(59) to element 6(97), max sum is 187 Max sum is 187 Max is from element 2(59) to element 6(97), max sum is 187

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