最简单的dp问题
连续子数组最大和
http://www.nowcoder.com/questionTerminal/03d341fb6c9d42debcdd38d82a0a545c
#普通的DP 问题
if __name__ == "__main__":
n = int(input())
l = []
for _ in range(n):
l.append(int(input()))
s = [0 for _ in range(n)]
s[0] = l[0]
ans = l[0]
for i in range(1, n):
if s[i-1]>0:
s[i] = s[i-1] + l[i]
else:
s[i] = l[i]
ans = max(ans, s[i])
print(ans)
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