. 简答题
1.某地需要搬运砖块，已知男人一人搬3块，女人一人搬2块，小孩两人搬一块。问用45人正好搬45块砖，有多少种搬法？
#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
using namespace std;
int main(){
int n;
cin>>n;
int cnt_m,cnt_w;
bool flag = false;
for(cnt_m=0;cnt_m<n;cnt_m++){
for(cnt_w=0;cnt_w<n;cnt_w++){
if(5*cnt_m+3*cnt_w==n){
cout<<"men = "<<cnt_m<<", women = "<<cnt_w<<", child = "<<n-cnt_w-cnt_m<<endl;
flag=true;
}
}
}
if(!flag)cout<<"None";
return 0;
}
men = 0, women = 15, child = 30
men = 3, women = 10, child = 32
men = 6, women = 5, child = 34
men = 9, women = 0, child = 36