Kefa and First Steps-最大非递减子段的长度
Kefa decided to make some money doing business on the Internet for exactly n days. He knows that on the i-th day (1 ≤ i ≤ n) he makes a**i money. Kefa loves progress, that's why he wants to know the length of the maximum non-decreasing subsegment in sequence a**i. Let us remind you that the subsegment of the sequence is its continuous fragment. A subsegment of numbers is called non-decreasing if all numbers in it follow in the non-decreasing order.
Help Kefa cope with this task!
Input
Output
Print a single integer — the length of the maximum non-decreasing subsegment of sequence a.
Examples
Input
6
2 2 1 3 4 1
Output
3
Input
3
2 2 9
Output
3
Note
In the first test the maximum non-decreasing subsegment is the numbers from the third to the fifth one.
In the second test the maximum non-decreasing subsegment is the numbers from the first to the third one.
简单题,直接输入的时候判断是不是比上一个小,如果是,重新计数;如果否,则计数。
#include <cstdio>
#include <algorithm>
using namespace std;
int main() {
int n;
scanf("%d", &n);
int last,in,curLen =1,result=1;
scanf("%d", &last);
for (int i = 1; i < n; ++i) {
scanf("%d", &in);
if (in >= last){
curLen++;
} else{
curLen = 1;
}
result = max(result,curLen);
last = in;
}
printf("%d\n", result);
return 0;
}
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