30pts求助!《想不到出题人出了个这么大的数……害得我TLE》
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30pts求助!《想不到出题人出了个这么大的数……害得我TLE》
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__Harry_Haiyun__楼主2023/8/11 15:48
#include <bits/stdc++.h>
#define MOD 998244353
#define mod 1000000007
#define ll long long
#define ull unsigned long long
#define ui unsigned int
using namespace std;
const int maxn = 1e6+9;;
ll count(ll n,int x)
{
    vector<int>v;
    while (n)
    {
        v.push_back(n % 10);
        n /= 10;
    }
    ll sum = 0;
    while (v.size())
    {
        if (v.front() == x)
            sum++;
        v.pop_back();
    }
    return sum;
}
ll n,m,a[10];
void f()
{
    for (int i = n; i <= m; i++)
    {
        for (int j = 0; j < 10; j++)
            a[j] += count(i,j);
    }
}
void k()
{
    for (int i = 0; i < 10; i++)
        cout << a[i] << ' ';
}
int main()
{
	cin >> n >> m;
	f();
	k();
	return 0;
}
2023/8/11 15:48
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