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08:00:08 am 
dp[i]:表示第i个人买完需要的最小时间,转移为dp[i]=min ( dp[i-1]+s[i] , dp[i-2]+d[i] );即前一个人买票和前两个人一起买票的时间花销最小值
#include<bits/stdc++.h>
using namespace std;
template<class T>inline T read(T&x)
{
    char c;
    while((c=getchar())<=32)if(c==EOF)return 0;
    bool ok=false;
    if(c=='-')ok=true,c=getchar();
    for(x=0; c>32; c=getchar())
        x=x*10+c-'0';
    if(ok)x=-x;
    return 1;
}
template<class T> inline T read_(T&x,T&y)
{
    return read(x)&&read(y);
}
template<class T> inline T read__(T&x,T&y,T&z)
{
    return read(x)&&read(y)&&read(z);
}
template<class T> inline void write(T x)
{
    if(x<0)putchar('-'),x=-x;
    if(x<10)putchar(x+'0');
    else write(x/10),putchar(x%10+'0');
}
template<class T>inline void writeln(T x)
{
    write(x);
    putchar('\n');
}
//-------ZCC IO template------
const int maxn=1e5+1000;
const double inf=999999999;
#define lson (rt<<1),L,M
#define rson (rt<<1|1),M+1,R
#define M ((L+R)>>1)
#define For(i,t,n) for(int i=(t);i<(n);i++)
typedef long long  LL;
typedef double DB;
typedef pair<int,int> P;
#define bug printf("---\n");
#define mod  100007
int dp[maxn];//第i个人买完票 需要的最小时间
int s[maxn];
int d[maxn];
int main()
{
    int n,E,F;
    read(n);
    while(n--)
    {
        int k;
        read(k);
        for(int i=1;i<=k;i++)
            read(s[i]);
        for(int i=2;i<=k;i++)
            read(d[i]);
        memset(dp,0,sizeof(dp));
        dp[1]=s[1];
        for(int i=2;i<=k;i++)
        {
            dp[i]=min(dp[i-1]+s[i],dp[i-2]+d[i]);
        }
    
        int m=dp[k]/60;
        int h=m/60;
        int ss=dp[k]%60;
        m%=60;
        h+=8;
        if(h<=12)
            printf("%02d:%02d:%02d am\n",h,m,ss);
        else
            printf("%02d:%02d:%02d pm\n",h-12,m,ss);
    }
    return 0;
}
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原文地址:http://blog.csdn.net/u013167299/article/details/45228123