按道理这个代码没问题，64个男生11条船花费最小，再加上36个女生6条船刚好17条船

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n, m, ans1 = 0, ans2 = 0, ans3 = 0;
    cin >> n;
    m = 100 - n;
    if (n % 6 == 1 || n % 6 == 2)
    {
        ans1 += n / 6;
        ans3 += 1;
    }
    else if (n % 6 == 3)
    {
        ans1 += n / 6;
        ans2 += 1;
    }
    else
    {
        if (n % 6 == 0) ans1 += n / 6;
        else ans1 += n / 6 + 1;
    }
    if (m % 6 == 1 || m % 6 == 2)
    {
        ans1 += m / 6;
        ans3 += 1;
    }
    else if (m % 6 == 3)
    {
        ans1 += m / 6;
        ans2 += 1;
    }
    else
    {
        if (m % 6 == 0) ans1 += m / 6;
        else ans1 += m / 6 + 1;
    }
    cout << ans1 << " " << ans2 << " " << ans3 << endl;
    return 0;
}

#include <iostream>
using namespace std;
int main()
{
    int n, m, ans1 = 0, ans2 = 0, ans3 = 0;
    cin >> n;
    m = 100 - n;
    if (n % 6 == 1 or n % 6 == 2)
    {
        ans1 += n / 6;
        ans3 += 1;
    }
    else if (n % 6 == 3)
    {
        ans1 += n / 6;
        ans2 += 1;
    }
    else
    {
        if (n % 6 == 0) 
        {
            ans1 += n / 6;
        }
        else
        {     
        ans1 += n / 6 + 1;
        }

    }
    if (m % 6 == 1 or m % 6 == 2)
    {
        ans1 += m / 6;
        ans3 += 1;
    }
    else if (m % 6 == 3)
    {
        ans1 += m / 6;
        ans2 += 1;
    }
    else
    {
        if (m % 6 == 0) ans1 += m / 6;
        else ans1 += m / 6 + 1;
    }
    cout << ans1 << " " << ans2 << " " << ans3 << endl;
    return 0;
}

男女分别求，大于4选大船，等于3选中，小于3选小，其余全选大船

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int m,ans1=0,ans2=0,ans3=0;
    cin>>m;
    int w=100-m;
    ans1+=m/6+w/6;
    w=w-w/6*6,m=m-m/6*6;
    if (w>=4)
        ans1++;
    else if (w==3)
        ans2++;
    else if (w>0)
        ans3++;
    if (m>=4)
        ans1++;
    else if (m==3)
        ans2++;
    else if (m>0)
        ans3++;
    cout<<ans1<<" "<<ans2<<" "<<ans3;
    return 0;
}