Submission #96997

#	Time	Username	Problem	Language	Result	Execution time	Memory
96997		Danylo99	Ispit (COCI19_ispit)	C++17	90 / 90	192 ms	936 KiB

Main

#include <bits/stdc++.h>
#define ll long long
#define LL long long
#define PB push_back
#define INF 2000000000
#define X first
#define Y second
using namespace std;
const LL mod = 998244353;
const LL MAX = 600005;
string s[505];
int diff[26];
int diff2[26];
 
int main()
{
    //freopen("input.txt" , "r" , stdin);
    ios_base::sync_with_stdio(0);
    int n , k;
    cin >> n >> k;
    for(int i = 0; i < n; i++)
    {    
        cin >> s[i];
        for(auto &x : s[i])
            x -= 'a';
    }
    for(int i = 0; i < n; i++)
    {
        for(int j = i + 1; j < n; j++)
        {
            memset(diff2 , 0 , sizeof diff2);
            for(int k = 0; k < n; k++)
            {
                diff2[s[i][k]]-- , diff2[s[j][k]]++;
            }
            bool bad = false;
            for(int k = 0; k < 26; k++)
                bad |= diff2[k];
            if(bad)
                continue;
            memset(diff , 0 , sizeof diff);
            int cnt = 0;
		int l = INF , r = 0;
            for(int k = 0; k < n; k++)
            {
                if(s[i][k] != s[j][k])
                {
		l = min(k , l);
			r = k;
                }
            }
		
		
            if(r - l + 1 > k)
                continue;
            cout << "DA";
            return 0;
        }
    }
    cout << "NE";
}

Compilation message (stderr)

ispit.cpp: In function 'int main()':
ispit.cpp:34:30: warning: array subscript has type 'char' [-Wchar-subscripts]
                 diff2[s[i][k]]-- , diff2[s[j][k]]++;
                              ^
ispit.cpp:34:49: warning: array subscript has type 'char' [-Wchar-subscripts]
                 diff2[s[i][k]]-- , diff2[s[j][k]]++;
                                                 ^
ispit.cpp:42:17: warning: unused variable 'cnt' [-Wunused-variable]
             int cnt = 0;
                 ^~~

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