Lucky Number Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 294 Accepted Submission(s): 49 Problem Description “Ladies and Gentlemen, It’s show time! ” “A thief is a creative artist who ta…
把全部合法的进制打出来会发现合法的进制都是在 n/3 n/4 n/5的边上 然后暴力边上的进制数.. #include <cstdio> #include <set> typedef long long ll; bool ok(ll x, ll y) { ll v; while (x > 0) { v = x % y; if (v != 3 && v != 4 && v != 5 && v != 6) return false;…
当进制转换后所剩下的为数较少时(2位.3位),相应的base都比較大.能够用数学的方法计算出来. 预处理掉转换后位数为3位后,base就小于n的3次方了,能够暴力计算. . .. Lucky Number Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 521 Accepted Submission(s): 150 Probl…