QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#848723 | #9915. General Symmetry | hhoppitree | TL | 1ms | 6048kb | C++23 | 1.6kb | 2025-01-09 08:57:13 | 2025-01-09 08:57:14 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5, V = 1005;
bitset<N> f[N / 100], g[V];
int a[N];
signed main() {
int n, m; scanf("%d%d", &n, &m);
for (int i = 1; i <= n; ++i) {
scanf("%d", &a[i]);
for (int j = max(a[i] - m, 1); j <= min(a[i] + m, 100); ++j) g[j][i] = 1;
}
bitset<N> now, tf;
for (int i = 1; i <= n; ++i) {
now = 1;
tf = (tf >> 1) & g[a[i]];
tf[i] = 1;
if (i && abs(a[i] - a[i - 1]) <= m) tf[i - 1] = 1;
tf &= now;
if (i % 100 == 0) f[i / 100] = tf;
}
auto check = [&](int l, int r) {
int p = r / 100 + 1;
if (p * 100 > n || l - (p * 100 - r) <= 0) return 0;
return (int)f[p][l - (p * 100 - r)];
};
for (int i = 1; i <= n; ++i) {
int L = 1, R = min(i - 1, n - i), res = 0;
while (L <= R) {
int mid = (L + R) >> 1;
if (check(i - mid, i + mid)) res = mid, L = mid + 1;
else R = mid - 1;
}
while (res + 1 <= min(i - 1, n - i) && abs(a[i + (res + 1)] - a[i - (res + 1)]) <= m) ++res;
printf("%d%c", res * 2 + 1, " \n"[i == n]);
}
for (int i = 1; i < n; ++i) {
int L = 1, R = min(i, n - i), res = 0;
while (L <= R) {
int mid = (L + R) >> 1;
if (check(i - mid + 1, i + mid)) res = mid, L = mid + 1;
else R = mid - 1;
}
while (res + 1 <= min(i, n - i) && abs(a[i + (res + 1)] - a[i - (res + 1) + 1]) <= m) ++res;
printf("%d%c", res * 2, " \n"[i == n - 1]);
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 5920kb
input:
5 0 1 2 1 2 1
output:
1 3 5 3 1 0 0 0 0
result:
ok 9 numbers
Test #2:
score: 0
Accepted
time: 1ms
memory: 4068kb
input:
5 1 1 2 1 3 1
output:
1 3 5 3 1 2 2 0 0
result:
ok 9 numbers
Test #3:
score: 0
Accepted
time: 1ms
memory: 6048kb
input:
10 0 1 2 3 4 500 5 501 6 499 503
output:
1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0
result:
ok 19 numbers
Test #4:
score: 0
Accepted
time: 1ms
memory: 4036kb
input:
10 1 1 2 3 4 500 5 501 6 499 503
output:
1 1 1 1 3 3 5 1 1 1 2 2 2 0 0 0 0 0 0
result:
ok 19 numbers
Test #5:
score: 0
Accepted
time: 0ms
memory: 6004kb
input:
10 2 1 2 3 4 500 5 501 6 499 503
output:
1 3 3 1 3 5 5 3 1 1 2 2 2 0 0 0 0 0 0
result:
ok 19 numbers
Test #6:
score: 0
Accepted
time: 1ms
memory: 3992kb
input:
10 10 1 2 3 4 500 5 501 6 499 503
output:
1 3 3 1 3 5 5 3 1 1 2 4 2 0 0 0 0 0 2
result:
ok 19 numbers
Test #7:
score: -100
Time Limit Exceeded
input:
100000 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 101 103 105 107 109 111 113 115 117 119 121 123 125 127 129 131 133 135 137 139 141 143 145 147 149 151 153 155 157 159 161 163 165 167 169 171 173 175 177...