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最大子序列动态规划代码
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cctype>
#include <cmath>
#include <algorithm>
#include <vector>
#include <queue>
#include <stack>
#include <map>
using namespace std;
const int inf = 0x3f;
const int INF = 0x3f3f3f3f;
const int maxn = 100005;
int n, a[maxn], b[maxn];
int main()
{
int T;
scanf("%d", &T);
for(int tt = 1; tt <= T; tt++)
{
scanf("%d", &n);
for(int i = 0; i < n; i++)
{
scanf("%d", &a[i]);
}
b[0] = a[0];
int ans = a[0], s = 0, t = 0, e = 0;
for(int i = 1; i < n; i++)
{
if(a[i] > a[i]+b[i-1])
{
t = i; b[i] = a[i];
}
else
{
b[i] = a[i] + b[i-1];
}
//printf("i = %d, %d\n", i, b[i]);
if(b[i] > ans)
{
s = t; e = i; ans = b[i];
}
}
printf("Case %d:\n", tt);
printf("%d %d %d\n", ans, s+1, e+1);
}
return 0;
}
动态规划 挺好的 教程
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原文地址:http://www.cnblogs.com/tenlee/p/4531767.html