Submission #645542

#	Time	Username	Problem	Language	Result	Execution time	Memory
645542		mychecksedad	Genetics (BOI18_genetics)	C++17	27 / 100	38 ms	11348 KiB

genetics

/* Author : Mychecksdead */
#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define PI 3.1415926535
#define pb push_back
#define setp() cout << setprecision(15)
#define all(x) x.begin(), x.end()
#define debug(x) cerr << #x << " is " << x << '\n';
const int N = 1e6+100, M = 1e5+10, F = 2147483646, K = 20;
 
 
 
int n, m, k, c;
bitset<4200> a[4200][4];
bitset<4200> b[4200];
vector<bool> is(N);
int dif(int x, int y){
    int ans = 0;
    if(c == 2) return m - (b[x] ^ b[y]).count();
    for(int i = 0; i < c; ++i) ans += (a[x][i] & a[y][i]).count();
    return m - ans;
}
 
void solve(){
    cin >> n >> m >> k;
    string t;
    if(n <= 100) c = 4;
    else c = 2;
    for(int i = 0; i < n; ++i){
        cin >> t;
        for(int j = 0; j < m; ++j){
            if(t[j] == 'A') a[i][0][j] = 1;
            if(t[j] == 'A') b[i][j] = 1;
            if(t[j] == 'C') a[i][1][j] = 1;
            if(t[j] == 'T') a[i][2][j] = 1;
            if(t[j] == 'G') a[i][3][j] = 1;
        }
    }
    vector<int> cur;
    for(int i = 1; i < n; ++i){
        if(dif(0, i) == k) cur.pb(i);
    }
    if(cur.size()==n-1) cout << 1;
    else{
        int c = 0;
        while(1){
            int v = cur.back(); cur.pop_back();
            bool ok = 1;
            for(int i = 0; i < n; ++i){
                if(i==v) continue;
                if(dif(i, v) != k){
                    ok = 0;
                    break;
                }
            }
            if(ok){
                cout << v + 1;
                return;
            }
        }    
    }
}
 
 
 
 
 
int main(){
    cin.tie(0); ios::sync_with_stdio(0);
    int T = 1, aa;
    // cin >> T;aa=T;
    while(T--){
        // cout << "Case #" << aa-T << ": ";
        solve();
        cout << '\n';
    }
    return 0;
 
}

Compilation message (stderr)

genetics.cpp: In function 'void solve()':
genetics.cpp:47:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |     if(cur.size()==n-1) cout << 1;
      |        ~~~~~~~~~~^~~~~
genetics.cpp:49:13: warning: unused variable 'c' [-Wunused-variable]
   49 |         int c = 0;
      |             ^
genetics.cpp: In function 'int main()':
genetics.cpp:74:16: warning: unused variable 'aa' [-Wunused-variable]
   74 |     int T = 1, aa;
      |                ^~

• Subtask 1: 27 / 27
• Subtask 2: 0 / 19
• Subtask 3: 0 / 28
• Subtask 4: 0 / 26