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Submission #71127

# Submission time Handle Problem Language Result Execution time Memory
71127 2018-08-24T07:10:19 Z 3zp 구간 성분 (KOI15_interval) C++14
38 / 100
 1000 ms 47484 KB 
#include<bits/stdc++.h>
using namespace std;
int A = 987654323;
int B = 1e9 + 9;
int C = 985201597;
int D = 660353359;
int pol1[26];
int pol2[26];
set<pair<int,int> > sa[1509];
main(){
    pol1[0] = 1;
    for(int i = 1; i < 26; i ++)
        pol1[i] = (long long)pol1[i - 1] * (long long)A % B;
    pol2[0] = 1;
    for(int i = 1; i < 26; i ++)
        pol2[i] = (long long)pol2[i - 1] * (long long)C % D;
    int n, m;
    string a, b;
    cin >> a >> b;
    n = a.size(), m = b.size();
    for(int i = 0; i < n; i++){
        int H1 = 0, H2 = 0;
        for(int j = i; j < n; j++){
            H1 += pol1[a[j] - 'a'];
            H2 += pol2[a[j] - 'a'];
            if(H1 >= B) H1 -= B;
            if(H2 >= D) H2 -= D;
            sa[j - i + 1].insert({H1,H2});
        }
    }
    int ans = 0;
     for(int i = 0; i < n; i++){
        int H1 = 0, H2 = 0;
        for(int j = i; j < n; j++){
            H1 += pol1[b[j] - 'a'];
            H2 += pol2[b[j] - 'a'];
            if(H1 >= B) H1 -= B;
            if(H2 >= D) H2 -= D;
            if(sa[j - i + 1].find({H1,H2}) != sa[j - i + 1].end()){
                ans = max(ans, j - i + 1);
            }
        }
    }
    cout << ans << endl;


}

Compilation message

interval.cpp:10:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
interval.cpp: In function 'int main()':
interval.cpp:17:12: warning: variable 'm' set but not used [-Wunused-but-set-variable]
     int n, m;
            ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 536 KB Output is correct
3 Correct 2 ms 536 KB Output is correct
4 Correct 5 ms 852 KB Output is correct
5 Correct 5 ms 852 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 4184 KB Output is correct
2 Incorrect 93 ms 5024 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 764 ms 22396 KB Output is correct
2 Correct 803 ms 23004 KB Output is correct
3 Correct 889 ms 23004 KB Output is correct
4 Correct 761 ms 23004 KB Output is correct
5 Correct 763 ms 23092 KB Output is correct
6 Correct 767 ms 23092 KB Output is correct
7 Correct 788 ms 23092 KB Output is correct
8 Correct 813 ms 23204 KB Output is correct
9 Correct 746 ms 23264 KB Output is correct
10 Correct 790 ms 23264 KB Output is correct

Subtask #4
0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 303 ms 23264 KB Output is correct
2 Execution timed out 1077 ms 47484 KB Time limit exceeded
3 Halted 0 ms 0 KB -