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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#489921 | #8819. CNOI Knowledge | _log_ | WA | 259ms | 38328kb | C++14 | 2.3kb | 2024-07-25 09:00:01 | 2024-07-25 09:00:03 |
Judging History
answer
# include <bits/stdc++.h>
# define maxn 1005
# define ull unsigned long long
# define rep(i, j, k) for(int i = j; i <= k; ++i)
using namespace std;
int n, tot;
int a[maxn], ans[maxn][maxn];
int d[maxn];
ull has[maxn], pw[maxn];
map<ull, int> mp;
namespace Garder {
int ans[10][10] = {
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{0, 1, 3, 6, 9, 12, 18, 24, 31, 0},
{0, 0, 1, 3, 5, 7, 12, 17, 23, 0},
{0, 0, 0, 1, 3, 5, 9, 13, 19, 0},
{0, 0, 0, 0, 1, 3, 6, 9, 14, 0},
{0, 0, 0, 0, 0, 1, 3, 6, 10, 0},
{0, 0, 0, 0, 0, 0, 1, 3, 6, 0},
{0, 0, 0, 0, 0, 0, 0, 1, 3, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
{0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
};
}
inline int query(int l, int r) {
if(ans[l][r]) return ans[l][r];
cout << "? " << l << ' ' << r << endl;
// ans[l][r] = Garder::ans[l][r];
cin >> ans[l][r];
return ans[l][r];
}
void update(int r) {
memset(d, 0, sizeof(d));
rep(i, 1, r) {
ull hsh = has[r] - has[i - 1] * pw[r - i + 1], len = r - i + 1;
// cerr << i << ' ' << r << ' ' << hsh << ' ' << mp.count(hsh) << '\n';
if(!mp.count(hsh)) d[1]++;
else d[mp[hsh] - len + 2]++;
d[i + 1]--; mp[hsh] = r;
}
rep(i, 1, r) d[i] += d[i - 1];
// cout << r << " : ";
// rep(i, 1, n) cout << d[i] << ' '; cout << '\n';
rep(l, 1, r) ans[l][r] = ans[l][r - 1] + d[l];
}
signed main() {
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> n; a[1] = ++tot; ans[1][1] = 1; has[1] = 1;
pw[0] = 1; rep(i, 1, n) pw[i] = pw[i - 1] * 19260817;
rep(i, 2, n) {
int now = query(1, i);
if(now - ans[1][i - 1] == i) a[i] = ++tot;
else {
int l = 1, r = i, pos, mid;
while(l <= r) {
mid = l + r >> 1;
if(query(mid, i) - ans[mid][i - 1] == i - mid + 1) pos = mid - 1, r = mid - 1;
else l = mid + 1;
}
a[i] = a[pos];
}
has[i] = has[i - 1] * 19260817 + a[i]; update(i);
}
// rep(i, 1, n) {
// rep(j, 1, n) cerr << ans[i][j] << ' ';
// cerr << '\n';
// }
cout << "! ";
rep(i, 1, n) cout << a[i] << ' ';
cout << '\n';
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3696kb
input:
12 3 6 10 15 21 27 10 20 15 34 14 6 9 43 52 19 5 2 1 62 19 5 13 8 72 25 9 19
output:
? 1 2 ? 1 3 ? 1 4 ? 1 5 ? 1 6 ? 1 7 ? 4 7 ? 2 7 ? 3 7 ? 1 8 ? 4 8 ? 6 8 ? 5 8 ? 1 9 ? 1 10 ? 5 10 ? 8 10 ? 9 10 ? 10 10 ? 1 11 ? 6 11 ? 9 11 ? 7 11 ? 8 11 ? 1 12 ? 6 12 ? 9 12 ? 7 12 ! 1 2 3 4 5 6 2 5 7 7 5 6
result:
ok Accepted. 28 queries used.
Test #2:
score: 0
Accepted
time: 259ms
memory: 38328kb
input:
1000 3 5 2 1 7 3 2 1 11 5 7 16 8 2 1 21 7 2 1 27 11 5 7 34 11 5 3 41 15 5 2 1 48 15 3 2 1 57 19 4 2 1 66 17 4 2 1 75 20 4 2 1 84 15 4 2 1 96 23 9 13 15 108 23 11 5 3 124 31 11 5 3 140 36 11 5 2 1 156 45 15 3 2 1 172 48 15 5 11 7 188 58 16 5 2 1 208 59 16 5 12 8 229 69 21 8 2 1 251 69 20 8 3 5 273 79...
output:
? 1 2 ? 1 3 ? 2 3 ? 3 3 ? 1 4 ? 2 4 ? 3 4 ? 4 4 ? 1 5 ? 3 5 ? 2 5 ? 1 6 ? 3 6 ? 5 6 ? 6 6 ? 1 7 ? 4 7 ? 6 7 ? 7 7 ? 1 8 ? 4 8 ? 6 8 ? 5 8 ? 1 9 ? 5 9 ? 7 9 ? 8 9 ? 1 10 ? 5 10 ? 8 10 ? 9 10 ? 10 10 ? 1 11 ? 6 11 ? 9 11 ? 10 11 ? 11 11 ? 1 12 ? 6 12 ? 9 12 ? 11 12 ? 12 12 ? 1 13 ? 7 13 ? 10 13 ? 12 1...
result:
ok Accepted. 9789 queries used.
Test #3:
score: -100
Wrong Answer
time: 62ms
memory: 7568kb
input:
1000 2 1 3 2 1 7 5 11 5 8 15 7 11 21 7 16 11 27 11 5 8 33 11 3 2 1 40 14 3 2 1 47 11 31 23 17 54 13 36 27 20 61 7 4 2 1 71 15 51 32 23 81 20 8 2 1 94 28 12 5 8 107 31 12 5 8 120 38 11 3 2 1 133 38 9 26 20 14 148 44 14 5 9 163 44 14 5 11 8 179 54 15 3 2 1 199 56 14 3 2 1 219 65 17 4 2 1 240 66 17 7 1...
output:
? 1 2 ? 2 2 ? 1 3 ? 2 3 ? 3 3 ? 1 4 ? 2 4 ? 1 5 ? 3 5 ? 2 5 ? 1 6 ? 3 6 ? 2 6 ? 1 7 ? 4 7 ? 2 7 ? 3 7 ? 1 8 ? 4 8 ? 6 8 ? 5 8 ? 1 9 ? 5 9 ? 7 9 ? 8 9 ? 9 9 ? 1 10 ? 5 10 ? 8 10 ? 9 10 ? 10 10 ? 1 11 ? 6 11 ? 3 11 ? 4 11 ? 5 11 ? 1 12 ? 6 12 ? 3 12 ? 4 12 ? 5 12 ? 1 13 ? 7 13 ? 10 13 ? 12 13 ? 13 13 ...
result:
wrong answer Wrong Answer.