题目 做法
第一位选除0外最小的数,其他位按从小到大选。
#include<bits/stdc.h>
#define int unsigned long long
using namespace std;
int t,a[20],m;
const int mod1e97;
int ksm(int a,int b){int ans1;while(b){if(b%2) ansans*a%mod;b/2;aa*a%mod;}r…
backup database archivelog all delete input; 当前日志不会切换及备份 RMAN archivelog backup
Yesterday I encountered a problem with a RMAN backup. There were no backups of archivelogs, only datafile backups and archivelogs. So I investigated the issue and f…