oj.uz

Submission #22326

# Submission time Handle Problem Language Result Execution time Memory
22326 2017-04-30T03:56:40 Z AcornCkiGs14004Team(#953, gs14004, cki86201, dotorya) Joyful KMP (KRIII5_JK) C++11
7 / 7
 323 ms 85180 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long lint;
typedef unsigned long long kriii;
typedef long double llf;
typedef pair<int, int> pi;
const int mod = 1e9 + 7;

struct disj{
	int pa[1000005];
	void init(int n){
		for(int i=0; i<=n; i++) pa[i] = i;
	}
	int find(int x){
		return pa[x] = (pa[x] == x ? x : find(pa[x]));
	}
	bool uni(int p, int q){
		p = find(p);
		q = find(q);
		if(p == q) return 0;
		pa[q] = p; return 1;
	}
}disj;

vector<int> gph[1000005];
vector<pi> v;
char str[1000005];
char rchr[1000005];
int fail[1000005];
kriii cnt[1000005];
lint k;

int n, deg[1000005];

int main(){
	cin >> str >> k;
	n = strlen(str);
	disj.init(n);
	int p = 0;
	for(int i=1; str[i]; i++){
		while(p > 0 && str[i] != str[p]){
			v.push_back(pi(p, i));
			p = fail[p];
		}
		if(str[i] == str[p]){
		//	printf("uni %d %d\n", i, p);
			disj.uni(p, i);
			p++;
		}
		else{
			v.push_back(pi(p, i));
		}
		fail[i+1] = p;
	}
	for(auto &i : v){
		i.first = disj.find(i.first);
		i.second = disj.find(i.second);
		if(i.first > i.second) swap(i.first, i.second);
	}
	sort(v.begin(), v.end());
	v.resize(unique(v.begin(), v.end()) - v.begin());
	for(auto &i : v){
		deg[i.second]++;
		gph[i.second].push_back(i.first);
	}
	lint ans = 1;
	for(int i=0; i<n; i++){
		if(disj.find(i) == i){
			ans *= max(0, 26 - deg[i]);
			ans %= mod;
		}
	}
	cout << ans << endl;
	kriii tmp = 1;
	for(int i=n-1; i>=0; i--){
		if(disj.find(i) == i){
			cnt[i] = tmp;
			tmp = 0;
			for(int j=0; j<26-deg[i]; j++){
				tmp += cnt[i];
				if(tmp > k) tmp = k+1;
			}
		}
	}
	if(tmp < k){
		cout << "OVER";
		return 0;
	}
	else{
		k--;
		for(int i=0; i<n; i++){
			if(disj.find(i) == i){
				lint x = k / cnt[i];
				k -= x * cnt[i];
				int mark[26] = {};
				for(auto &j : gph[i]){
					mark[rchr[j] - 'a'] = 1;
				}
				lint prvx = x;
				for(int j=0; j<26; j++){
					if(!mark[j]) x--;
					if(x == -1){
						rchr[i] = j + 'a';
						break;
					}
				}
			}
		}
		for(int i=0; i<n; i++) putchar(rchr[disj.find(i)]);
	}
}

Compilation message

JK.cpp: In function 'int main()':
JK.cpp:81:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(tmp > k) tmp = k+1;
            ^
JK.cpp:85:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(tmp < k){
         ^
JK.cpp:99:10: warning: unused variable 'prvx' [-Wunused-variable]
     lint prvx = x;
          ^

Subtask #1
7.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 46944 KB Output is correct
2 Correct 9 ms 46944 KB Output is correct
3 Correct 6 ms 46944 KB Output is correct
4 Correct 3 ms 46944 KB Output is correct
5 Correct 276 ms 85180 KB Output is correct
6 Correct 323 ms 85180 KB Output is correct
7 Correct 263 ms 85180 KB Output is correct
8 Correct 319 ms 85180 KB Output is correct
9 Correct 279 ms 85180 KB Output is correct
10 Correct 6 ms 46944 KB Output is correct
11 Correct 6 ms 46944 KB Output is correct
12 Correct 6 ms 46944 KB Output is correct
13 Correct 3 ms 47084 KB Output is correct
14 Correct 3 ms 47084 KB Output is correct
15 Correct 16 ms 48064 KB Output is correct
16 Correct 29 ms 49104 KB Output is correct
17 Correct 119 ms 56796 KB Output is correct
18 Correct 239 ms 66964 KB Output is correct
19 Correct 256 ms 67624 KB Output is correct
20 Correct 223 ms 67360 KB Output is correct
21 Correct 236 ms 66964 KB Output is correct
22 Correct 213 ms 66700 KB Output is correct
23 Correct 63 ms 46944 KB Output is correct
24 Correct 53 ms 46944 KB Output is correct
25 Correct 69 ms 46944 KB Output is correct
26 Correct 66 ms 46944 KB Output is correct
27 Correct 69 ms 46944 KB Output is correct
28 Correct 63 ms 46944 KB Output is correct
29 Correct 53 ms 46944 KB Output is correct
30 Correct 59 ms 46944 KB Output is correct
31 Correct 53 ms 46944 KB Output is correct
32 Correct 66 ms 46944 KB Output is correct
33 Correct 63 ms 46944 KB Output is correct
34 Correct 49 ms 46944 KB Output is correct
35 Correct 59 ms 46944 KB Output is correct
36 Correct 59 ms 46944 KB Output is correct
37 Correct 59 ms 46944 KB Output is correct
38 Correct 53 ms 46944 KB Output is correct
39 Correct 63 ms 46944 KB Output is correct
40 Correct 73 ms 46944 KB Output is correct
41 Correct 66 ms 46944 KB Output is correct
42 Correct 53 ms 46944 KB Output is correct
43 Correct 59 ms 46944 KB Output is correct
44 Correct 63 ms 46944 KB Output is correct
45 Correct 63 ms 46944 KB Output is correct
46 Correct 53 ms 46944 KB Output is correct
47 Correct 69 ms 46944 KB Output is correct
48 Correct 56 ms 46944 KB Output is correct
49 Correct 46 ms 46944 KB Output is correct
50 Correct 56 ms 46944 KB Output is correct