Submission #96761

#	Time	Username	Problem	Language	Result	Execution time	Memory
96761		kraljlavova1	Parametriziran (COCI19_parametriziran)	C++11	11 / 110	2017 ms	66560 KiB

Main

#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<int, int> pii;
const int MAX = 5e4 + 10, MAXOFF = 6;
int n, m;
ll sol;
string s[MAX];
//map<string, ll> mp[1 << MAXOFF];
map<ll, ll> mp[1 << MAXOFF];
ll _hash(string x){
	ll ret = 0;
	for(int i = 0;i < x.length(); i++){
		ret += (x[i] - 'a') * (ll)pow(26, i);
	}
	return ret;
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);cout.tie(NULL);
    cin >> n >> m;
    for(int i = 0;i < n; i++){
    	cin >> s[i];
		}
    for(int i = 0;i < n; i++){
        int num = 0, len = 0;
        string p;
        for(int j = 0;j < m; j++){
            if(s[i][j] != '?'){
                p += s[i][j];
                num += (1 << j);
                len++;
            }
        }
        for(int j = 0;j < (1 << len); j++){
            string tmp = p;
            for(int k = 0;k < len; k++){
                if((1 << k) & j) tmp[k] = '?';
            }
            sol += mp[num][_hash(tmp)];
        }
        for(int j = 0;j < (1 << m); j++){
            p = "";
            for(int k = 0;k < m; k++){
                if(j & (1 << k)){
                    p += s[i][k];
                }
            }
            mp[j][_hash(p)]++;
        }
    }
    cout << sol << "\n";
    return 0;
}

Compilation message (stderr)

parametriziran.cpp: In function 'll _hash(std::__cxx11::string)':
parametriziran.cpp:13:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0;i < x.length(); i++){
                ~~^~~~~~~~~~~~

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