QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#509168 | #6345. Random Interactive Convex Hull Bot | Mine_King | WA | 1ms | 3792kb | C++14 | 1.5kb | 2024-08-08 11:28:19 | 2024-08-08 11:28:20 |
Judging History
answer
// 長い夜の終わりを信じながら
// Think twice, code once.
#include <vector>
#include <cstdio>
#include <string>
#include <cstring>
#include <iostream>
#include <algorithm>
#define eputchar(c) putc(c, stderr)
#define eprintf(...) fprintf(stderr, __VA_ARGS__)
#define eputs(str) fputs(str, stderr), putc('\n', stderr)
using namespace std;
int n;
vector<int> vec({1, 2, 3});
int query(int a, int b, int c) {
printf("? %d %d %d\n", a, b, c), fflush(stdout);
int x;
scanf("%d", &x);
return x;
}
int main() {
scanf("%d", &n);
if (query(1, 2, 3) == -1) swap(vec[1], vec[2]);
for (int i = 4; i <= n; i++) {
int m = vec.size();
int type = query(vec[0], vec[m / 2], i);
int le, ri;
if (type == 1) {
int l = m / 2, r = m - 1;
while (l < r) {
int mid = (l + r) / 2 + 1;
if (query(vec[0], vec[mid], i) == 1) l = mid;
else r = mid - 1;
}
le = l, ri = l + 1;
} else {
int l = 1, r = m / 2;
while (l < r) {
int mid = (l + r) / 2;
if (query(vec[0], vec[mid], i) == -1) r = mid;
else l = mid + 1;
}
le = r - 1, ri = r;
}
if (query(vec[le], vec[ri], i) == 1) continue;
while (query(vec[(le + m - 1) % m], vec[le], i) == -1) le = (le + m - 1) % m;
while (query(vec[(ri + 1) % m], vec[ri], i) == 1) ri = (ri + 1) % m;
vector<int> tmp({i});
for (int j = ri; j != le; j = (j + 1) % m) tmp.push_back(vec[j]);
tmp.push_back(vec[le]);
vec.swap(tmp);
}
printf("! ");
for (int i : vec) printf("%d ", i);
puts(""), fflush(stdout);
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 0
Wrong Answer
time: 1ms
memory: 3792kb
input:
5 -1 -1 -1 1 1 -1 -1 -1 1 -1
output:
? 1 2 3 ? 1 3 4 ? 1 3 4 ? 2 1 4 ? 2 3 4 ? 1 2 4 ? 4 2 5 ? 4 2 5 ? 1 4 5 ? 1 2 5 ! 5 2 1 4
result:
wrong answer format Unexpected end of file - int32 expected