本文主要是介绍CF1005A Tanya and Stairways，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
题目描述
Little girl Tanya climbs the stairs inside a multi-storey building. Every time Tanya climbs a stairway, she starts counting steps from 1 1 1 to the number of steps in this stairway. She speaks every number aloud. For example, if she climbs two stairways, the first of which contains 3 3 3 steps, and the second contains 4 4 4 steps, she will pronounce the numbers 1,2,3,1,2,3,4 1, 2, 3, 1, 2, 3, 4 1,2,3,1,2,3,4 .
You are given all the numbers pronounced by Tanya. How many stairways did she climb? Also, output the number of steps in each stairway.
The given sequence will be a valid sequence that Tanya could have pronounced when climbing one or more stairways.
输入输出格式
输入格式：
The first line contains n n n ( 1≤n≤1000 1 \le n \le 1000 1≤n≤1000 ) — the total number of numbers pronounced by Tanya.
The second line contains integers a1,a2,…,an a_1, a_2, \dots, a_n a1,a2,…,an ( 1≤ai≤1000 1 \le a_i \le 1000 1≤ai≤1000 ) — all the numbers Tanya pronounced while climbing the stairs, in order from the first to the last pronounced number. Passing a stairway with x x x steps, she will pronounce the numbers 1,2,…,x 1, 2, \dots, x 1,2,…,x in that order.
The given sequence will be a valid sequence that Tanya could have pronounced when climbing one or more stairways.
输出格式：
In the first line, output t t t — the number of stairways that Tanya climbed. In the second line, output t t t numbers — the number of steps in each stairway she climbed. Write the numbers in the correct order of passage of the stairways.
输入输出样例
输入样例#1： 复制
7 1 2 3 1 2 3 4
输出样例#1： 复制
2 3 4
输入样例#2： 复制
4 1 1 1 1
输出样例#2： 复制
4 1 1 1 1
输入样例#3： 复制
5 1 2 3 4 5
输出样例#3： 复制
1 5
输入样例#4： 复制
5 1 2 1 2 1
输出样例#4： 复制
3 2 2 1
很简单，上代码：
#include<cstdio>
using namespace std;
int a[1000],b[1000];
int n,temp,j=0,ans=0;
int main()
{scanf("%d",&n);for(int i=1;i<=n;i++){scanf("%d",&temp);a[temp]++;if(temp!=1){b[j]++;}if(temp==1)j++;}printf("%d\n",a[1]);for(int i=1;i<=j;i++)printf("%d ",(b[i]+1));return 0;}
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