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답안 #38441

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
38441 2018-01-04T06:47:50 Z kajebiii 구간 성분 (KOI15_interval) C++14
100 / 100
 256 ms 2156 KB 
#include <bits/stdc++.h>

using namespace std;

#define SZ(v) ((int)(v).size())
#define ALL(v) (v).begin(),(v).end()
#define one first
#define two second
typedef long long ll;
typedef pair<int, int> pi;
const int INF = 0x3f2f1f0f;
const ll LINF = 1ll * INF * INF;

const int MAX_N = 2e3 + 10;

typedef unsigned int ui;

int N, M; char Ns[MAX_N], Ms[MAX_N];
ui H[26];
int main() {
	H[0] = 1e9 + 7;
	for(int i=1; i<26; i++) H[i] = H[i-1] * (ui)97 + (ui)(1e8 + 7);
	
	scanf("%s", Ns); N = strlen(Ns);
	scanf("%s", Ms); M = strlen(Ms);

	int ans = 0;
	for(int l=min(N, M); l>=1; l--) {
		ui n = 0, m = 0;
		for(int i=0; i<l-1; i++) n += H[Ns[i]-'a'], m += H[Ms[i]-'a'];
		set<ui> s;
		for(int i=l-1; i<N; i++) {
			n += H[Ns[i]-'a'];
			if(i-l>=0) n -= H[Ns[i-l]-'a'];
			s.insert(n);
		}
		for(int j=l-1; j<M; j++) {
			m += H[Ms[j]-'a'];
			if(j-l>=0) m -= H[Ms[j-l]-'a'];
			if(s.find(m) != s.end()) {
				ans = l;
				goto finish;
			}
		}
	}
finish:
	printf("%d\n", ans);
	return 0;
}

Compilation message

interval.cpp: In function 'int main()':
interval.cpp:24:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", Ns); N = strlen(Ns);
                 ^
interval.cpp:25:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", Ms); M = strlen(Ms);
                 ^

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 2024 KB Output is correct
2 Correct 0 ms 2024 KB Output is correct
3 Correct 0 ms 2024 KB Output is correct
4 Correct 0 ms 2024 KB Output is correct
5 Correct 0 ms 2024 KB Output is correct

Subtask #2
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 2024 KB Output is correct
2 Correct 13 ms 2024 KB Output is correct
3 Correct 0 ms 2024 KB Output is correct
4 Correct 0 ms 2024 KB Output is correct
5 Correct 23 ms 2024 KB Output is correct

Subtask #3
31.0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 96 ms 2024 KB Output is correct
2 Correct 103 ms 2024 KB Output is correct
3 Correct 106 ms 2024 KB Output is correct
4 Correct 99 ms 2024 KB Output is correct
5 Correct 109 ms 2024 KB Output is correct
6 Correct 103 ms 2024 KB Output is correct
7 Correct 109 ms 2024 KB Output is correct
8 Correct 116 ms 2024 KB Output is correct
9 Correct 109 ms 2024 KB Output is correct
10 Correct 109 ms 2024 KB Output is correct

Subtask #4
39.0 / 39.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 2024 KB Output is correct
2 Correct 226 ms 2156 KB Output is correct
3 Correct 206 ms 2156 KB Output is correct
4 Correct 6 ms 2024 KB Output is correct
5 Correct 256 ms 2156 KB Output is correct