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我把楼上“一种解法”的代码稍微整理了下,清晰度会好一些,而且考虑了单个元素最大的情况#include <stdio.h>
#include <stdlib.h>
int main()
{
int n,res;
int data[100][100];
int s[101],a[100];
while(scanf("%d",&n)==1)
{
/* input data */
for(int i=0;i<n;i++)
{
for(int j=0;j<n;j++)
{
scanf("%d",&data[i][j]);
}
}
res = data[0][0];
for(int i=0;i<n;i++)
{
for(int j=i;j<n;j++)
{
/* initial */
for(int t=0;t<100;t++)
{
a[t]=0;
s[t]=0;
}
for(int col=0;col<n;col++)
{
for(int row=i;row<=j;row++)
a[col]+=data[row][col];
if(s[col]>0)
s[col+1]=a[col]+s[col];
else
s[col+1]=a[col];
}
for(int t=1;t<=n;t++)
{
if(res<s[t])
res=s[t];
}
}
}
printf("%d",res);
}
}
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