题解 | #汽水瓶#
汽水瓶
https://www.nowcoder.com/practice/fe298c55694f4ed39e256170ff2c205f
#include <iostream> using namespace std; int main() { int n; while(cin>>n) { int ans = 0; //he if(n == 0) { break; } while(n>=3) { ans += n/3; n = n/3+n%3; } if(n == 2) { ans++; } cout<<ans<<endl; } } // 64 位输出请用 printf("%lld")