标签:des style blog class code java
观察可以发现,0,1,2,……,n结尾的分组中,
maxsum a[0] = a[0]
maxsum a[1] = max( a[0] + a[1] ,a[1]) = max( maxsum a[0] + a[1] ,a[1])
maxsum a[2] = max( max ( a[0] + a[1] + a[2],a[1] + a[2] ),a[2])
= max( max( a[0] + a[1] ,a[1]) + a[2] , a[2])
= max( maxsum a[1] + a[2] , a[2])
……
依此类推,可以得出通用的式子。
maxsum a[i] = max(maxsum a[i-1] + a[i],a[i])
//#define LOCAL #include<cstdio> const int INF=-1000000; int sum,sum_max,begin,end,temp,T,N,conn; void solve() { scanf("%d",&N); int a; sum_max=INF,sum=0,temp=1,begin=1; for(int i=0;i<N;i++) { scanf("%d",&a); sum=sum+a; if(sum_max<sum) { sum_max=sum; begin=temp; end=i+1; } if(sum<0) { sum=0; temp=i+2; } } printf("Case %d:\n%d %d %d\n",(conn-T),sum_max,begin,end); if(T!=0) { printf("\n"); } } int main() { #ifdef LOCAL freopen("1003.in","r",stdin); freopen("1003.out","w",stdout); #endif scanf("%d",&T); conn=T; while(T--) { solve(); } return 0; }
Time
Limit: 2000/1000 MS (Java/Others) Memory Limit:
65536/32768 K (Java/Others)
Total Submission(s):
136354 Accepted Submission(s):
31568
sum max(hdu 1003),布布扣,bubuko.com
标签:des style blog class code java
原文地址:http://www.cnblogs.com/jianfengyun/p/3725707.html