Submission #1174635

#	Time	Username	Problem	Language	Result	Execution time	Memory
1174635		browntoad	Hidden Sequence (info1cup18_hidden)	C++20	20 / 100	1089 ms	472 KiB

hidden

#include <bits/stdc++.h>
#include "grader.h"
using namespace std;
#define ll long long
// #define int ll
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define REP(i, n) FOR(i, 0, n)
#define REP1(i, n) FOR(i, 1, n+1)
#define RREP(i, n) for (int i = (n)-1; i >= 0; i--)
#define pii pair<int, int>
#define pip pair<int, pii>
#define f first
#define s second
#define pb push_back
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) (int)((x).size())

#ifdef TOAD
#define IOS() ios::sync_with_stdio(false), cin.tie(0), cout.tie(0)
#else
#define IOS() ios::sync_with_stdio(false), cin.tie(0), cout.tie(0)
#endif // TOAD

const ll maxn = 1e3+5;
const int iinf = 1e9+5;

bool is_sub(string a, string b){
    int ptr = 0;
    REP(i, SZ(b)){
        bool fnd = 0;
        while(ptr < SZ(a)){
            if (a[ptr] == b[i]){
                fnd = 1;
                ptr++;
                break;
            }
            ptr++;
        }
        if (!fnd) return 0;
    }
    return 1;
}

string conv(int a, int nm){
    string ret;
    REP(i, nm){
        if (a & (1<<i)) ret += '1';
        else ret += '0';
    }
    return ret;
}

vector<int> findSequence(int n){
    vector<string> puss;
    REP(i, (1<<n)){
        puss.pb(conv(i, n));
    }

    while(SZ(puss) > 1){
        int mn = iinf;
        string ret;

        REP1(nm, n/2+2){
            REP(j, (1<<nm)){
                int suc = 0, fal = 0;
                REP(k, SZ(puss)){
                    if (is_sub(puss[k], conv(j, nm))) suc++;
                    else fal++;
                }
                if (abs(suc-fal) < mn){
                    mn = abs(suc-fal);
                    ret = conv(j, nm);
                }
            }
        }

        vector<int> pp;
        REP(i, SZ(ret)) pp.pb(ret[i] == '1');
        bool qret = isSubsequence(pp);

        vector<string> tmp;
        REP(k, SZ(puss)){
            if (is_sub(puss[k], ret) == qret){
                tmp.pb(puss[k]);
            }
        }
        puss = tmp;
    }

    vector<int> ret;
    REP(i, SZ(puss[0])) ret.pb(puss[0][i] == '1');
    return ret;
    //cout<<mn<<endl;
    //for (auto pp:ret) cout<<pp<<endl;
}
/*
signed main(){
    IOS();
    int n; cin>>n;
}
*/
/*
2 3
2 4 3
5 7 5
*/

Compilation message (stderr)

grader.cpp: In function 'int main()':
grader.cpp:28:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   28 |     fprintf (fifo_out, "%d\n", ans.size ());
      |                         ~^     ~~~~~~~~~~~
      |                          |              |
      |                          int            std::vector<int>::size_type {aka long unsigned int}
      |                         %ld

• Subtask 1: 20 / 20
• Subtask 2: 0 / 80