Submission #1845521


Source Code Expand

#include <iostream>
#include <string>
#include <vector>
#include <deque>
#include <algorithm>
#include <cstdio>

using namespace std;

long long int gcd(long long int a, long long int b) {
    return b == 0 ? a : gcd(b, a % b);
}

long long int a, b;

long long int dfs(long long int ret, bool can, vector<long long int> picked, long long int x) {
    //cerr << "(" << ret << "," << can << ",[" << picked.size() << "]," << x << ")        ";
    if (can) {
        picked.push_back(x);
        ++ret;
    }

    //cerr << x << " ----" << endl;
    //for (auto&& X : picked) cerr << X << " ";
    //cerr << endl;

    for (long long int next = x + 1; next <= b; ++next) {
        //cerr << "--------------- " << next << endl;
        bool f = true;
        for (long long int n : picked) {
            if (gcd(n, next) > 1) {
                //cerr << "dropped " << next << endl;
                ret = dfs(ret, false, vector<long long int>(picked), next);
                f = false;
                break;
            }
        }
        if (f) {
            //cerr << "picked  " << next << endl;
            ret = dfs(ret, true, vector<long long int>(picked), next);
        }
    }
    //cerr << endl;
    return ret;
}

int main() {
    cin >> a >> b;

    long long int ans = 1;

    for (long long int i = a; i <= b; ++i) {
        //cerr << i << " ============" << endl;
        ans += dfs(0, true, vector<long long int>(), i);
    }


    cout << ans << endl;

    return 0;
}

Submission Info

Submission Time
Task C - すぬけそだて――ごはん――
User nahcnuj
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1543 Byte
Status WA
Exec Time 2103 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 400
Status
AC × 2
TLE × 1
AC × 4
WA × 2
TLE × 12
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
01.txt AC 1 ms 256 KB
02.txt WA 1 ms 256 KB
03.txt TLE 2103 ms 256 KB
04.txt TLE 2103 ms 256 KB
05.txt TLE 2103 ms 256 KB
06.txt TLE 2103 ms 256 KB
07.txt AC 1 ms 256 KB
08.txt WA 232 ms 256 KB
09.txt TLE 2103 ms 256 KB
10.txt TLE 2103 ms 256 KB
11.txt TLE 2103 ms 256 KB
12.txt TLE 2103 ms 256 KB
13.txt TLE 2103 ms 256 KB
14.txt TLE 2103 ms 256 KB
15.txt TLE 2103 ms 256 KB
s1.txt AC 1 ms 256 KB
s2.txt AC 1 ms 256 KB
s3.txt TLE 2103 ms 256 KB