千山鸟飞绝

容斥模板代码，int solve(){ int ans = 0; //是那四个数的倍数的数的数量 for (int i = 1 ; i < (1<<4) ; i++) //选数 { int ant = 0; //选中数的数量 int k = 1; //记录选中数字的乘积 for (int j = 0 ; j < 4 ; j++) {

Poj1142 Smith NumbersSmith Numbers Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 13854 Accepted: 4716 DescriptionWhile skimming his phone directory in 1982, Albert Wilansk