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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 |
---|---|---|---|---|---|---|---|---|---|
#244622 | #6303. Inversion | hhoppitree# | WA | 29ms | 19512kb | C++14 | 891b | 2023-11-09 13:46:02 | 2023-11-09 13:46:03 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 2005;
int a[N], b[N], f[N][N];
int query(int l, int r)
{
if (~f[l][r]) {
return f[l][r];
}
if (l >= r) {
return 0;
}
printf("? %d %d\n", l, r);
int x;
fflush(stdout);
scanf("%d", &x);
return f[l][r] = x;
}
int cmp(int l, int r)
{
if (l > r) {
return !cmp(r, l);
}
return query(l, r) ^ query(l + 1, r) ^ query(l, r - 1) ^ query(l + 1, r - 1);
}
signed main()
{
int n;
scanf("%d", &n);
memset(f, -1, sizeof(f));
for (int i = 1; i <= n; ++i) {
a[i] = i;
}
stable_sort(a + 1, a + n + 1, cmp);
for (int i = 1; i <= n; ++i) {
b[a[i]] = n - i + 1;
}
printf("!");
for (int i = 1; i <= n; ++i) {
printf(" %d", b[i]);
}
puts("");
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 19512kb
input:
3 0 0 1
output:
? 1 2 ? 1 3 ? 2 3 ! 2 3 1
result:
ok OK, guesses=3
Test #2:
score: -100
Wrong Answer
time: 29ms
memory: 19496kb
input:
1993 0 0 0 1 0 1 0 0 0 0 0 0 1 0 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 1 0 0 0 1 1 0 1 1 0 1 1 0 1 0 1 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 1 0 1 0 0 1 1 0 1 1 0 1 1 0 1 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 1 1 0 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 0 1 1 1 1 0 1 0 1 1 1 0 1 1 1 1 0 0 0 1 0 0 0 0 0 1 1 0 1 1 0 0...
output:
? 1 2 ? 2 3 ? 3 4 ? 4 5 ? 1 5 ? 2 5 ? 1 4 ? 2 4 ? 4 6 ? 5 6 ? 1 6 ? 2 6 ? 4 7 ? 5 7 ? 6 7 ? 8 9 ? 8 10 ? 9 10 ? 8 11 ? 9 11 ? 10 11 ? 8 12 ? 9 12 ? 10 12 ? 11 12 ? 8 13 ? 9 13 ? 13 14 ? 10 14 ? 11 14 ? 10 13 ? 11 13 ? 12 14 ? 12 13 ? 15 16 ? 16 17 ? 15 17 ? 16 18 ? 17 18 ? 15 18 ? 16 19 ? 17 19 ? 18...
result:
wrong output format Unexpected end of file - int32 expected