1078. 字符串压缩与解压 (20)

#include <iostream>#include <string>using namespace std;string a;void deal1(){getline(cin, a);for(int i = 0; i < a.length(); i++){int count = 0;while(a[i] == a[i+1])i++, count++;if(count != 0)cout << count+1;cout << a[i];}}void deal2(){getline(cin, a);for(int i = 0; i < a.length(); i++){int sum = 0;while(a[i] <= '9' && a[i] >= '0')sum = sum*10 + a[i++]-'0';//数个数(两位以上的数字) for(int j = 0; j < sum; j++)cout << a[i];if(sum == 0)cout << a[i];}}int main(){char ch;cin >> ch;getchar();//吞回车 if(ch == 'C')deal1();else if(ch == 'D')deal2();cout << endl;return 0;}