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Submission #491151

# Submission time Handle Problem Language Result Execution time Memory
491151 2021-11-30T16:14:17 Z Yazan_Alattar Parametriziran (COCI19_parametriziran) C++14
110 / 110
 1223 ms 42964 KB 
#include <bits/stdc++.h>
#define long long long
using namespace std;

int n, m;
long ans;
map<int, int> ls[64][64];
void solve(istream& cin) {
    cin >> n >> m;
    for(int i = 0; i < n; i++) {
        string s;
        cin >> s;
        int h = 0, mask1 = 0;
        for(int j = 0; j < m; j++) if(s[j] != '?') mask1 |= 1 << j;
        int tmp[64];
        fill(tmp, tmp+64, -1);
        for(int mask2 = 0; mask2 < 1 << m; mask2++) if((mask2 & mask1) == mask2) {
                int h = 0;
                for(int j = 0, p = 1; j < m; j++, p *= 26) {
                    if(mask2 >> j & 1) {
                        h += p * (s[j] - 'a');
                    }
                }
                tmp[mask2] = h;
            }
        // different mask2
        for(int mask2 = 0; mask2 < 1 << m; mask2++) {
            int and_mask = mask1 & mask2;
            int h = tmp[and_mask];
            if(ls[mask2][and_mask].count(h))
                ans += ls[mask2][and_mask][h];
        }
        for(int mask2 = 0; mask2 < 1 << m; mask2++) if(tmp[mask2] >= 0) ++ls[mask1][mask2][tmp[mask2]];
    }
    cout << ans;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    solve(cin);
}

Compilation message

parametriziran.cpp: In function 'void solve(std::istream&)':
parametriziran.cpp:13:13: warning: unused variable 'h' [-Wunused-variable]
   13 |         int h = 0, mask1 = 0;
      |             ^

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 460 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 460 KB Output is correct
2 Correct 7 ms 460 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 540 KB Output is correct
2 Correct 16 ms 540 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 1176 KB Output is correct
2 Correct 18 ms 716 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 912 KB Output is correct
2 Correct 43 ms 1432 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 165 ms 5360 KB Output is correct
2 Correct 22 ms 588 KB Output is correct

Subtask #7
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 315 ms 9924 KB Output is correct
2 Correct 27 ms 716 KB Output is correct

Subtask #8
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 450 ms 17760 KB Output is correct
2 Correct 233 ms 8244 KB Output is correct

Subtask #9
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 644 ms 28176 KB Output is correct
2 Correct 39 ms 664 KB Output is correct

Subtask #10
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1223 ms 42964 KB Output is correct
2 Correct 629 ms 21472 KB Output is correct