暴力打表. #include<cstdio> #include<cstring> #include<cmath> #include<string> #include<algorithm> using namespace std; ]; long long L, R; int tot; void dfs(long long num, int len) { ) return; &&num<=&&num % ==…
ztr loves lucky numbers 题目链接: http://acm.hust.edu.cn/vjudge/contest/121332#problem/I Description ztr loves lucky numbers. Everybody knows that positive integers are lucky if their decimal representation doesn't contain digits other than 4 and 7. For…
C. Lucky Numbers time limit per test 0.5 seconds memory limit per test 64 megabytes input standard input output standard output The numbers of all offices in the new building of the Tax Office of IT City will have lucky numbers. Lucky number is a num…
Problem Description ztr loves lucky numbers. Everybody knows that positive integers are lucky if their decimal representation doesn't contain digits other than 4 and 7. For example, numbers 47, 744, 4 are lucky and 5, 17, 467 are not. Lucky number is…
传送门: http://acm.zcmu.edu.cn/JudgeOnline/problem.php?id=2177 2177: Lucky Numbers (easy) 时间限制: 2 Sec 内存限制: 256 MB提交: 42 解决: 21[提交][状态][讨论版] 题目描述 time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard ou…
Problem description Petya loves lucky numbers. Everybody knows that positive integers are lucky if their decimal representation doesn't contain digits other than 4 and 7. For example, numbers 47, 744, 4 are lucky and 5, 17, 467 are not. Lucky number…
Roma and Lucky Numbers time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Roma (a popular Russian name that means 'Roman') loves the Little Lvov Elephant's lucky numbers. Let us remind you tha…
