結果

問題 No.1580 I like Logarithm!
ユーザー noya2noya2
提出日時 2021-07-02 22:36:01
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 6 ms / 2,000 ms
コード長 3,899 bytes
コンパイル時間 4,632 ms
コンパイル使用メモリ 278,844 KB
実行使用メモリ 6,948 KB
最終ジャッジ日時 2024-06-29 12:26:42
合計ジャッジ時間 5,856 ms
ジャッジサーバーID
(参考情報)
judge3 / judge4
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
6,812 KB
testcase_01 AC 3 ms
6,948 KB
testcase_02 AC 3 ms
6,940 KB
testcase_03 AC 2 ms
6,940 KB
testcase_04 AC 2 ms
6,944 KB
testcase_05 AC 2 ms
6,940 KB
testcase_06 AC 4 ms
6,940 KB
testcase_07 AC 6 ms
6,940 KB
testcase_08 AC 3 ms
6,940 KB
testcase_09 AC 3 ms
6,948 KB
testcase_10 AC 3 ms
6,940 KB
testcase_11 AC 4 ms
6,940 KB
testcase_12 AC 5 ms
6,940 KB
testcase_13 AC 4 ms
6,944 KB
testcase_14 AC 6 ms
6,940 KB
testcase_15 AC 5 ms
6,944 KB
testcase_16 AC 3 ms
6,944 KB
testcase_17 AC 2 ms
6,940 KB
testcase_18 AC 2 ms
6,944 KB
testcase_19 AC 3 ms
6,940 KB
testcase_20 AC 2 ms
6,940 KB
testcase_21 AC 3 ms
6,940 KB
testcase_22 AC 3 ms
6,940 KB
testcase_23 AC 2 ms
6,940 KB
testcase_24 AC 2 ms
6,940 KB
testcase_25 AC 3 ms
6,944 KB
testcase_26 AC 5 ms
6,940 KB
testcase_27 AC 5 ms
6,944 KB
testcase_28 AC 5 ms
6,940 KB
testcase_29 AC 5 ms
6,940 KB
testcase_30 AC 5 ms
6,944 KB
testcase_31 AC 5 ms
6,944 KB
testcase_32 AC 6 ms
6,940 KB
testcase_33 AC 5 ms
6,940 KB
testcase_34 AC 5 ms
6,940 KB
testcase_35 AC 6 ms
6,940 KB
testcase_36 AC 5 ms
6,944 KB
testcase_37 AC 5 ms
6,944 KB
testcase_38 AC 5 ms
6,944 KB
testcase_39 AC 5 ms
6,940 KB
testcase_40 AC 5 ms
6,940 KB
testcase_41 AC 5 ms
6,944 KB
testcase_42 AC 5 ms
6,940 KB
testcase_43 AC 5 ms
6,944 KB
testcase_44 AC 5 ms
6,940 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#include <bits/stdc++.h>
/*
#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/multiprecision/cpp_int.hpp>
namespace mp = boost::multiprecision;
using bint = mp::cpp_int;
*/
#include <atcoder/all>
#include <iostream>
#include <queue>
#include <stack>
#include <vector>
#include <string>
#include <set>
#include <map>
#include <random>
#include <bitset>
#define rep(i,n) for (int i = 0; i < int(n); ++i)
#define repp(i,n,m) for (int i = m; i < int(n); ++i)
#define repb(i,n) for (int i = int(n)-1; i >= 0; --i)
using namespace std;
using namespace atcoder;
using namespace internal;
//alias g++='g++ -I/mnt/c/Users/Owner/Desktop/ac-library'
using ll = long long;
using ld = long double;
using P = pair<int, int>;
using PI = pair<pair<int,int>,int>;
using PL = pair<long long, long long>;
using PLL = pair<pair<long long, long long>, long long>;
using Pxy = pair<long double, long double>;
const int INF = 1001001007;
const int modd = 1000000007;
const long long modl = 1000000007LL;
const long long mod = 998244353LL;
const ll inf = 2e18;

template <typename SA>
void priv(vector<SA> &ar){
    if (ar.size() == 0) cout << endl;
    else {
        rep(i,ar.size()-1) cout << ar[i] << " ";
        cout << ar[ar.size()-1] << endl;
    } 
}
template <typename SB>
void privv(vector<vector<SB>> &ar){
    rep(i,ar.size()){
        rep(j,ar[i].size()-1) cout << ar[i][j] << " ";
        cout << ar[i][ar[i].size()-1] << endl;
    }
}
template <typename SC>
bool range(SC a, SC b, SC x){return (a <= x && x < b);}
bool rrange(P a, P b, P xy){
    bool s = range(a.first,b.first,xy.first);
    bool t = range(a.second,b.second,xy.second);
    return (s && t);
}
template <typename SE>
void rev(vector<SE> &ar){reverse(ar.begin(),ar.end());}
template <typename SD>
void sor(vector<SD> &ar, int f = 0){sort(ar.begin(),ar.end()); if (f!=0) rev(ar);}
template <typename SF>
bool chmin(SF &a, const SF &b){if(a>b){a = b; return true;} return false;}
template <typename SG>
bool chmax(SG &a, const SG &b){if(a<b){a = b; return true;} return false;}
template <typename SH>
void eru(vector<SH> &ar){sor(ar);ar.erase(unique(ar.begin(),ar.end()),ar.end());}
template <typename SI>
SI   last(vector<SI> &ar){return ar[ar.size()-1];}
template <typename SJ>
SJ   cel(SJ a, SJ b){if (a % b == 0) return a/b; return a/b +1;}
template <typename SK, typename SL>
void pout(pair<SK,SL> p) {cout << p.first << " " << p.second << endl;}

void yes(){cout << "Yes" << endl;}
void no (){cout << "No" << endl;}
void yn (bool t){if(t)yes();else no();}
void Yes(){cout << "YES" << endl;}
void No (){cout << "NO" << endl;}
void YN (bool t){if(t)Yes();else No();}
void dout() {cout << setprecision(20);}
void deb(int h = 123456789) {cout << h << endl;}

vector<int> dx = {0,1,0,-1};
vector<int> dy = {1,0,-1,0};
const string ALP = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const string alp = "abcdefghijklmnopqrstuvwxyz";

ll gcds(ll a, ll b){
    a = abs(a); b = abs(b);
    if (b == 0) return a;
    ll c = a % b;
    while (c != 0){
        a = b;
        b = c;
        c = a % b;
    }
    return b;
}

ll tentou(vector<ll> ar){
    int n = ar.size();
    set<ll> st;
    rep(i,n) st.insert(ar[i]);
    map<ll,int> mp;
    int ind = 0;
    for (ll x : st){
        mp[x] = ind;
        ind++;
    }
    fenwick_tree<ll> fw(ind);
    ll ans = 0;
    rep(i,n){
        int a = mp[ar[i]];
        ans += i - fw.sum(0,a+1);
        fw.add(a,1);
    }
    return ans;
}

struct vs {
    vector<int> to;
};

int main(){
    int b; cin >> b;
    string s; cin >> s;
    int n = s.size();
    reverse(s.begin(),s.end());
    using mint = modint1000000007;
    vector<mint> rui(100010,1);
    repp(i,100010,1) rui[i] = rui[i-1] * b;
    mint ans = 0;
    rep(i,n-1) ans += i * (rui[i+1] - rui[i]);
    mint a = 0;
    rep(i,n) a += rui[i] * int(s[i] - '0');
    a -= rui[n-1] - 1;
    ans += a * (n-1);
    cout << ans.val() << endl;
}
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