Submission #97336

#	Time	Username	Problem	Language	Result	Execution time	Memory
97336		szawinis	Parametriziran (COCI19_parametriziran)	C++17	88 / 110	3068 ms	66560 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define long long long
const long MOD = 1e9+7, LINF = 1e18 + 1e16;
const int INF = 1e9+1;
const double EPS = 1e-10;
const int dx[4] = {-1, 0, 1, 0}, dy[4] = {0, 1, 0, -1};
 
class TaskD {
    int n, m;
    map<int,int> ls[64][64];
    long ans;
public:
    void solve(istream &cin, ostream &cout) {
        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];
                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;
    }
};
 
class Solver {
public:
    void solve(std::istream& in, std::ostream& out) {
        TaskD *obj = new TaskD();
        obj->solve(in, out);
        delete obj;
    }
};
 
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    Solver solver;
    std::istream& in(std::cin);
    std::ostream& out(std::cout);
    solver.solve(in, out);
    return 0;
}

Compilation message (stderr)

parametriziran.cpp: In member function 'void TaskD::solve(std::istream&, std::ostream&)':
parametriziran.cpp:19:17: warning: unused variable 'h' [-Wunused-variable]
             int h = 0, mask1 = 0;
                 ^

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 11 / 11
• Subtask 5: 11 / 11
• Subtask 6: 11 / 11
• Subtask 7: 11 / 11
• Subtask 8: 11 / 11
• Subtask 9: 0 / 11
• Subtask 10: 0 / 11