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Submission #596900

# Submission time Handle Problem Language Result Execution time Memory
596900 2022-07-15T09:06:49 Z jy0n Round words (IZhO13_rowords) C++17
16 / 100
 133 ms 288 KB 
#include <bits/stdc++.h>
using namespace std;
using ull=unsigned long long;

const int Sigma= 26;
string A, B;
vector<ull> d, s[Sigma];

#define set_bit(bs, i) (bs[i>>6] |= 1llu << (i&63))
#define get_bit(bs, i) ((bs[i>>6] >> (i&63))&1)
#define sub(a, b) ((a-b>a)? (a-=b, 1) : (a-=b, 0))

int main() {
    cin >> A >> B;
    int n = (int)A.size(), m = (int)B.size(), l = (m>>6)+1, ans=0;
    d.resize(l);
    for (int i=0; i<Sigma; ++i) s[i].resize(l);
    for (int i=0; i<m; ++i) set_bit(s[B[i]-'a'], i);
    for (int k=0; k<n; ++k) {
        memset(&d[0], 0, sizeof(ull)*l);
        for (int i=0; i<m; ++i) if (A[k] == B[i]) { set_bit(d, i); break; }
        for (int i=1; i<n; ++i) {
            ull sc = 1, mc = 0;
            for (int j=0; j<l; ++j) {
                ull x = s[A[(k+i)%n]-'a'][j]|d[j];
                ull t = (d[j] << 1)|sc;
                sc = d[j] >> 63;
                ull tt = x;
                mc = sub(tt, mc) + sub(tt, t);
                d[j] = x&(x^tt);
            }
        }
        int ret = 0;
        for (int x : d) ret += __builtin_popcountll(x);
        ans=max(ans, ret);
    }
    cout << ans << endl;
}

Compilation message

rowords.cpp: In function 'int main()':
rowords.cpp:11:31: warning: operation on 'tt' may be undefined [-Wsequence-point]
   11 | #define sub(a, b) ((a-b>a)? (a-=b, 1) : (a-=b, 0))
......
   29 |                 mc = sub(tt, mc) + sub(tt, t);
      |                          ~~~~~~
rowords.cpp:29:22: note: in expansion of macro 'sub'
   29 |                 mc = sub(tt, mc) + sub(tt, t);
      |                      ^~~

Subtask #1
16.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Incorrect 1 ms 212 KB Output isn't correct
6 Incorrect 12 ms 212 KB Output isn't correct
7 Correct 59 ms 280 KB Output is correct
8 Incorrect 55 ms 284 KB Output isn't correct
9 Incorrect 55 ms 284 KB Output isn't correct
10 Incorrect 52 ms 284 KB Output isn't correct
11 Incorrect 82 ms 280 KB Output isn't correct
12 Incorrect 89 ms 288 KB Output isn't correct
13 Incorrect 79 ms 212 KB Output isn't correct
14 Incorrect 86 ms 284 KB Output isn't correct
15 Incorrect 102 ms 284 KB Output isn't correct
16 Incorrect 64 ms 212 KB Output isn't correct
17 Incorrect 98 ms 280 KB Output isn't correct
18 Incorrect 113 ms 284 KB Output isn't correct
19 Incorrect 57 ms 288 KB Output isn't correct
20 Incorrect 119 ms 288 KB Output isn't correct
21 Incorrect 38 ms 284 KB Output isn't correct
22 Incorrect 60 ms 280 KB Output isn't correct
23 Incorrect 91 ms 212 KB Output isn't correct
24 Incorrect 87 ms 280 KB Output isn't correct
25 Incorrect 133 ms 284 KB Output isn't correct