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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
#358817#8337. Counter Reset ProblemKirill22#WA 44ms4392kbC++234.3kb2024-03-20 01:20:252024-03-20 01:20:26

Judging History

你现在查看的是最新测评结果

  • [2024-03-20 01:20:26]
  • 评测
  • 测评结果:WA
  • 用时:44ms
  • 内存:4392kb
  • [2024-03-20 01:20:25]
  • 提交

answer

#include "bits/stdc++.h"

using namespace std;

const int mod = (int) 1e9 + 9;

int add(int x, int y) {
    return x + y >= mod ? x + y - mod : x + y;
}

int sub(int x, int y) {
    return x - y < 0 ? x - y + mod : x - y;
}

int mul(int x, int y) {
    return x * 1ll * y % mod;
}

int binpow(int x, int n) {
    int res = 1;
    while (n) {
        if (n & 1) {
            res = mul(res, x);
        }
        x = mul(x, x);
        n >>= 1;
    }
    return res;
}

const int N = (int) 1e5;
int pw[N];

int check(int msk, int x) {
    return msk % (1 << x) != 0;
}

vector<int> upd(vector<int> dp, char c) {
    if (c == '0') {
        return dp;
    }
    int uk = 0;
    while (uk < dp.size() && dp[uk] > c - '0') uk++;
    if (uk == dp.size()) dp.push_back(c - '0');
    else dp[uk] = max(dp[uk], c - '0');
    return dp;
}

int get(string s) {
    vector<int> f = {10};
    vector<vector<int>> qu = {f};
    map<vector<int>, int> used;
    used[f] = 0;
    for (int i = 0; i < (int) qu.size(); i++) {
        for (int x = 0; x < 10; x++) {
            auto z = upd(qu[i], (char) '0' + x);
            if (used.find(z) == used.end()) {
                used[z] = (int) qu.size();
                qu.push_back(z);
            }
        }
    }
    const int k = (int) qu.size(), m = (int) s.size();
    vector<vector<int>> go(k, vector<int> (10));
    for (int i = 0; i < k; i++) {
        for (int x = 0; x < 10; x++) {
            go[i][x] = used[upd(qu[i], (char) '0' + x)];
        }
    }
    int ans = 0;
    for (int x = 0; x <= s[0] - '0'; x++) {
        if (x < s[0] - '0') {
            ans = add(ans, mul(10 - x, pw[m - 1]));
        } else {
            ans = add(ans, 10 - x);
            for (int j = 1; j < m; j++) {
                ans = add(ans, mul(10 - x, mul(s[j] - '0', pw[m - j - 1])));
            }
        }
    }
    vector<int> dp(k), dp2(k);
    int stk = 0;
    for (int i = 0; i < m; i++) {
        std::fill(dp2.begin(), dp2.end(), 0);
        for (int x = 0; x < 10; x++) {
            for (int msk = 0; msk < k; msk++) {
                dp2[go[msk][x]] = add(dp2[go[msk][x]], dp[msk]);
            }
            if (x < s[i] - '0') {
                dp2[go[stk][x]] = add(dp2[go[stk][x]], 1);
            } else if (x == s[i] - '0') {
                stk = go[stk][x];
            }
        }
        dp = dp2;
    }
    dp[stk]++;
    for (int i = 0; i < k; i++) {
        if ((int) qu[i].size() <= 2 || !dp[i]) {
            continue;
        }
        ans = add(ans, mul(10, mul((int) qu[i].size() - 2, dp[i])));
    }
    return ans;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    pw[0] = 1;
    for (int i = 1; i < N; i++) {
        pw[i] = mul(pw[i - 1], 10);
    }
//    get("10");
//    return 0;
//    cout << get("9") << " " << get("10") << " " << get("11") << endl;
//    return 0;
//    for (int n = 1; n < 25; n++) {
//        cout << n << " " << get(to_string(n)) - get(to_string(n - 1)) << endl;
//    }
//    return 0;
    int n;
    string L, R;
    cin >> n >> L >> R;
//    {
//        int ans = 0;
//        for (int x = stoi(L); x <= stoi(R); x++) {
//            string s = to_string(x);
//            if (s[0] != '0') ans += 10 - (s[0] - '0');
//            vector<int> dp = {(int) 1e9};
//            for (auto c : s) {
//                if (c == '0') continue;
//                int uk = 0;
//                while (uk < dp.size() && dp[uk] > c - '0') uk++;
//                if (uk == dp.size()) dp.push_back(c - '0');
//                else dp[uk] = max(dp[uk], c - '0');
//            }
//            ans += ((int) dp.size() - 2) * 10;
//        }
//        cout << ans;
//        return 0;
//    }
//    while (!L.empty() && L[0] == '0') {
//        L.erase(L.begin());
//    }
//    while (!R.empty() && R[0] == '0') {
//        R.erase(R.begin());
//    }
    int ans = get(R);
    if (count(L.begin(), L.end(), '0') != n) {
        for (int i = (int) L.size() - 1; i >= 0; i--) {
            if (L[i] == '0') {
                L[i] = '9';
            } else {
                L[i]--;
                break;
            }
        }
        ans = sub(ans, get(L));
    }
    cout << ans;
}

详细

Test #1:

score: 100
Accepted
time: 3ms
memory: 4392kb

input:

2
19 23

output:

51

result:

ok 1 number(s): "51"

Test #2:

score: 0
Accepted
time: 3ms
memory: 4096kb

input:

6
100084 518118

output:

9159739

result:

ok 1 number(s): "9159739"

Test #3:

score: 0
Accepted
time: 3ms
memory: 4152kb

input:

12
040139021316 234700825190

output:

771011551

result:

ok 1 number(s): "771011551"

Test #4:

score: 0
Accepted
time: 3ms
memory: 4092kb

input:

1
5 6

output:

9

result:

ok 1 number(s): "9"

Test #5:

score: 0
Accepted
time: 3ms
memory: 4096kb

input:

2
06 72

output:

609

result:

ok 1 number(s): "609"

Test #6:

score: 0
Accepted
time: 3ms
memory: 4128kb

input:

3
418 639

output:

2912

result:

ok 1 number(s): "2912"

Test #7:

score: 0
Accepted
time: 41ms
memory: 4156kb

input:

5000
0517031462295902016787205636287842713710486158285091634061538907131690102542613263904109051429895599547551249682345434244517372300211330243052548402051817254239088411128320032011447373157210750522722463984933692575118884942425236057310901139962840332684448050855646476051878413350560455871387882...

output:

107583434

result:

ok 1 number(s): "107583434"

Test #8:

score: 0
Accepted
time: 38ms
memory: 4108kb

input:

5000
2839631722409885676641854449409094340492285620998199901290315528351589154393629439187822315178094894928108915180727622985054953310653613329475433266861767377091508110388139487587162480394472451041742086595826537286229012805321959193382957731290351060584443229684181235109638118508206073343246746...

output:

675394398

result:

ok 1 number(s): "675394398"

Test #9:

score: 0
Accepted
time: 44ms
memory: 4112kb

input:

5000
0121086815228520611727091239718315691985426539178955693257347642954702438161323478758508490896602335048895013843711247876462745921412007803120100676220049634783076688779134708737789972863426435630047856085762842025741483042162463573248808646044510524282002015852558702184741741663627502716091539...

output:

578074633

result:

ok 1 number(s): "578074633"

Test #10:

score: 0
Accepted
time: 44ms
memory: 4172kb

input:

5000
4009315923866078525437170431271052539467314353326632440452295409898108927334934001515186676883568587509019024813648111170281871732854866326020722523420074725860024843129825137935119924032162976610499681775742229100481059217175250566980703955103400572138763397380102014106688956905053311588400020...

output:

819323161

result:

ok 1 number(s): "819323161"

Test #11:

score: -100
Wrong Answer
time: 22ms
memory: 4116kb

input:

5000
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

603082573

result:

wrong answer 1st numbers differ - expected: '603082563', found: '603082573'