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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#377483#7996. 报数 IVplutosTL 8ms38904kbC++171.5kb2024-04-05 14:10:452024-04-05 14:10:47

Judging History

你现在查看的是最新测评结果

  • [2024-04-05 14:10:47]
  • 评测
  • 测评结果:TL
  • 用时:8ms
  • 内存:38904kb
  • [2024-04-05 14:10:45]
  • 提交

answer

#include <bits/stdc++.h>

void Yes() {
    std::cout << "YES" << "\n";
    return;
}

void No() {
    std::cout << "NO" << "\n";
    return;
}

template<typename T>
void out(T x) { std::cout << x << "\n"; }

using namespace std;
//using int = long long;
using PII = pair<int, int>;

const int N = 2e5 + 10;
int k, m;
string n;
int a[1005];
int dp[1004][9004];
const int mod = 1e9 + 7;
//int tong[9001];
int cc(int x) {
    int tmp = 0;
    while (x) {
        tmp += x % 10;
        x /= 10;
    }
    return tmp;
}

int dfs(int pos, int sum, int lim, int lead0) {
    if (pos == 0)
    {
        for (int i = 1; i <= k - 1; i++) {
            sum = cc(sum);
        }
        return sum == m;
    }
    if (!lim && !lead0 && dp[pos][sum] != -1) {
        return dp[pos][sum];
    }
    int up = lim ? a[pos] : 9;
    int tmp = 0;
    for (int i = 0; i <= up; i++) {
        tmp += dfs(pos - 1, sum + i, lim && (i == up), lead0 && (i == 0));
        tmp%=mod;
    }
    if (!lim && !lead0) {
        return dp[pos][sum] = tmp;
    }
    return tmp;
}

int cal(string s) {
    int len = 0;
    reverse(s.begin(), s.end());
    for (auto p: s) {
        a[++len] = p - '0';
    }
    return dfs(len, 0, 1, 1);
}

void Solve() {
    for (int i = 0; i <= 1002; i++)
        for (int j = 0; j <= 9001; j++)
            dp[i][j] = -1;
    cin >> n >> k >> m;
    k = min(k, 5);
    cout << cal(n) <<"\n";
}

signed main() {
    int t = 1;
    cin>>t;
    while (t--)
        Solve();
}

詳細信息

Test #1:

score: 100
Accepted
time: 4ms
memory: 38864kb

input:

2
114 1 5
514 2 10

output:

8
10

result:

ok 2 lines

Test #2:

score: 0
Accepted
time: 8ms
memory: 38904kb

input:

5
114 1 5
514 2 10
114514 3 7
1919810 2 13
1145141919810114514191981011451419198101145141919810114514191981011451419198101145141919810114514191981011451419198101145141919810 1 79

output:

8
10
12724
504
481046284

result:

ok 5 lines

Test #3:

score: -100
Time Limit Exceeded

input:

5
3134666912140933323880320519044791121794814671711104987304374190280064994554822259889216567113228716903875026053927191961850586115167336109747673868148288830282192461669674173201533887392623483710043038941036243583011049049915834937139438028987629569618561762595613799223807979488245056374812076511...

output:

0
613343513
0
500149787
932367667

result: