⑨⑤分 求大神相助

村夫 @ 2020-03-09 11:00:38

#include<bits/stdc++.h>
using namespace std;
long long m,a,b,c,t,u;
int main(){
    cin>>m;
    switch(m){
        case 1:cout<<-1;return 0;
        case 2:cout<<-1;return 0;
        case 5:cout<<-1;return 0;
        default:
        t=m%14;
        a+=(m-t)/14;
        b+=(m-t)/14;
        c+=(m-t)/14;
        switch(t){
            case 1:a=a-1;b=b+2;break;
            case 2:a=a-1;c=c+3;break;
            case 3:c=c+1;break;
            case 4:b=b+1;break;
            case 5:a=a-1;c=c+4;break;
            case 6:c=c+2;break;
            case 7:b=b+1;c=c+1;break;
            case 8:b=b+2;break;
            case 9:c=c+3;break;
            case 10:b=b+1;c=c+2;break;
            case 11:b=b+2;c=c+1;break;
            case 12:c=c+4;break;
            case 13:b=b+1;c=c+3;break;
        }
    }
    if(m-a*7-b*4-c*3!=0)
        cout<<-1;
    else
        cout<<a<<" "<<b<<" "<<c;
    return 0;
}

by 村夫 @ 2020-03-09 11:08:16

我是新手 大神见谅

by pocafup @ 2020-03-09 11:09:08

#include <iostream>

using namespace std;
int a,b;
void solve(){
  cin >> a >> b;
  cout << a+b;
}//这东西叫function
int main(){
    solve();//这东西叫comment
    return 0;
}

by answerend42 @ 2020-03-09 11:11:44

@村夫 考虑了 n=0 输出0 0 0的情况吗

by 村夫 @ 2020-03-09 11:20:22

#include<bits/stdc++.h>
using namespace std;
long long m,a,b,c,t,u;
int main(){
    cin>>m;
    switch(m){     //看看m的值 
        case 1:cout<<-1;return 0;  //不可把钱花完 
        case 2:cout<<-1;return 0;
        case 5:cout<<-1;return 0;
        default:    //可以把钱花完 
        t=m%14;     //用m模14,每一个14 a,b,c都加一 
        a+=(m-t)/14;
        b+=(m-t)/14;
        c+=(m-t)/14;
        switch(t){      //看看t(m%14)的值
            case 1:a=a-1;b=b+2;break;
            case 2:a=a-1;c=c+3;break;
            case 3:c=c+1;break;
            case 4:b=b+1;break;
            case 5:a=a-1;c=c+4;break;
            case 6:c=c+2;break;
            case 7:b=b+1;c=c+1;break;
            case 8:b=b+2;break;
            case 9:c=c+3;break;
            case 10:b=b+1;c=c+2;break;
            case 11:b=b+2;c=c+1;break;
            case 12:c=c+4;break;
            case 13:b=b+1;c=c+3;break;
        }
    }
    cout<<a<<" "<<b<<" "<<c;
    return 0;
}

by 村夫 @ 2020-03-09 11:21:41

@answerend42 输出没问题

by answerend42 @ 2020-03-09 15:24:11

@村夫 我大概找到你的问题了，n\%14=1 时，你的程序策略有问题比如 n=15 正解应该是0 0 5而不是0 3 1

by 村夫 @ 2020-03-10 17:42:23

@answerend42 AC 了Thanks♪(･ω･)ﾉ谢谢