Submission #314663

#	Time	Username	Problem	Language	Result	Execution time	Memory
314663		ronnith	Parametriziran (COCI19_parametriziran)	C++14	33 / 110	3080 ms	2048 KiB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define boost_io ios::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define int long long
#define num(a) a-'0'
#define charr(a) (a - 'A' + 1)
#define rep(i,a,b) for(int i=a;i<b;i++)
#define maxs(a,b) if(b>a)a=b
#define mins(a,b) if(b<a)a=b
#define bin1(a) __builtin_popcount(a)
#define debug(x) cerr<<"["<<#x<<":"<<x<<"] "
#define debug2(a,b) debug(a);debug(b)
#define debug3(a,b,c) debug2(a,b);debug(c)
#define de cerr
#define gcd(a,b) __gcd(a,b)
#define lcm(a,b) (a*b)/(__gcd(a,b))
#define print(arr) for(auto it = arr.begin();it < arr.end();it ++){cout << *it << " ";}cout << ln;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
#define all(a) (a).begin(), (a).end()
#define vi vector<long long>
#define v vector
#define p pair
#define pii p<int,int>
#define pb push_back
#define mk make_pair
#define f first
#define s second
#define ln "\n"
typedef long double ld;
typedef double d;
using namespace std;
using namespace __gnu_pbds;
int modF=1e9+7;

/*OUTPUT

*/

int n,m;
int ans = 0;
// v<string> a;
map<string,int> mp;

bool chk(string s,int i,string b){
	if(i == m){
		// debug(b);
		// if(st.find(b) != st.end()){
			// debug(b);
			ans += mp[b];
			// return true;
		// }
		// return false;
	}
	else{
		if(s[i] == '?'){
			for(int j = 0;j < 26;j ++){
				char ch = (char)(j + 97);
				b[i] = ch;
				if(chk(s,i + 1,b)){
					// return true;
				}
			}
			b[i] = '?';
			if(chk(s,i + 1,b)){
				// return true;
			}
		}
		else{
			b[i] = s[i];
			if(chk(s,i + 1,b)){
				// return true;
			}
			b[i] = '?';
			if(chk(s,i + 1,b)){
				// return true;
			}
		}
	}
	return false;
}

void solve(){
	cin >> n >> m;
	if(m > 2){
		v<string> a(n);
		rep(i,0,n){
			cin >> a[i];
		}
		int ans = 0;
		for(int i = 0;i < n;i ++){
			for(int j = i + 1;j < n;j ++){
				bool pos = true;
				for(int k = 0;k < m;k ++){
					if(a[i][k] != '?' and a[j][k] != '?'){
						if(a[i][k] != a[j][k]){
							pos = false;
						}
					}
				}
				if(pos){
					ans ++;
				}
			}
		}
		cout << ans << ln;
	}
	else{
		// cout << "yes";
		string x;
		for(int i = 0;i < n;i ++){
			cin >> x;
			if(m == 1)
			chk(x,0," ");
			if(m == 2)
				chk(x,0,"  ");
			// debug(x);
			mp[x] ++;
		}
		cout << ans << ln;
	}
}

signed main(){
  boost_io;
  int t=1;
  // cin>>t;
  while(t--){
    solve();
  }
  return 0;
}

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