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Submission #320205

# Submission time Handle Problem Language Result Execution time Memory
320205 2020-11-07T23:28:22 Z Karen124 PIN (CEOI10_pin) C++14
100 / 100
 115 ms 51428 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
const ll N = 1e5 + 5;
const ll M = 36 + 5;
const ll K = 16 + 5; 
const ll O = 10;
ll n, d, z[O];
ll ans[O], ansp[O], res[O];
ll cn[K][M][M][M][M];
unordered_map <char, ll> f;
string a[N];
int main (){
    f['0'] = 1; f['1'] = 2; f['2'] = 3; f['3'] = 4; f['4'] = 5; f['5'] = 6; f['6'] = 7; f['7'] = 8;
    f['8'] = 9; f['9'] = 10; f['a'] = 11; f['b'] = 12; f['c'] = 13; f['d'] = 14; f['e'] = 15; f['f'] = 16;
    f['g'] = 17; f['h'] = 18; f['i'] = 19; f['j'] = 20; f['k'] = 21; f['l'] = 22; f['m'] = 23; f['n'] = 24;
    f['o'] = 25; f['p'] = 26; f['q'] = 27; f['r'] = 28; f['s'] = 29; f['t'] = 30; f['u'] = 31; f['v'] = 32;
    f['w'] = 33; f['x'] = 34; f['y'] = 35; f['z'] = 36; 
    cin >> n >> d;
    for (ll i = 0; i < n; i++){
        cin >> a[i];
        fill(ansp, ansp + O, 0);
        for (ll msk = 0; msk < 16; msk++){
            fill(z, z + O, 0);
            for (int j = 0; j < 4; j++){
                if ((msk >> j) & 1){
                    z[j] = f[a[i][j]];
                }
            }
            ansp[__builtin_popcount(msk)] += cn[msk][z[0]][z[1]][z[2]][z[3]]; 
            cn[msk][z[0]][z[1]][z[2]][z[3]] ++;
        }
        ansp[3] += -4ll * ansp[4];
        ansp[2] += -3ll * ansp[3] -6ll * ansp[4];
        ansp[1] += -2ll * ansp[2] -3ll * ansp[3] -4ll * ansp[4];
        ansp[0] += -1ll * ansp[1] -1ll * ansp[2] -1ll * ansp[3] -1ll * ansp[4];
        for (int j = 0; j < 4; j++) ans[j] += ansp[j];
    }    
    cout << ans[4 - d] << '\n';
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 10476 KB Output is correct
2 Correct 10 ms 10348 KB Output is correct
3 Correct 9 ms 10220 KB Output is correct
4 Correct 29 ms 11116 KB Output is correct
5 Correct 34 ms 11148 KB Output is correct
6 Correct 35 ms 11116 KB Output is correct
7 Correct 29 ms 11244 KB Output is correct
8 Correct 39 ms 11116 KB Output is correct
9 Correct 54 ms 11116 KB Output is correct
10 Correct 60 ms 11116 KB Output is correct
11 Correct 36 ms 11244 KB Output is correct
12 Correct 56 ms 11116 KB Output is correct
13 Correct 42 ms 11236 KB Output is correct
14 Correct 39 ms 11116 KB Output is correct
15 Correct 59 ms 11244 KB Output is correct
16 Correct 95 ms 51428 KB Output is correct
17 Correct 114 ms 51428 KB Output is correct
18 Correct 95 ms 51300 KB Output is correct
19 Correct 104 ms 51356 KB Output is correct
20 Correct 115 ms 51428 KB Output is correct