// Hallelujah, praise the one who set me free
// Hallelujah, death has lost its grip on me
// You have broken every chain, There's salvation in your name
// Jesus Christ, my living hope
#include <bits/stdc++.h>
#include "monster.h"
using namespace std;
#define REP(i, s, e) for (int i = (s); i < (e); i++)
#define RREP(i, s, e) for (int i = (s); i >= (e); i--)
template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}
typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define SZ(_a) (int) _a.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<iii> viii;
#ifndef DEBUG
#define cerr if (0) cerr
#endif
const int INF = 1000000005;
const ll LINF = 1000000000000000005ll;
const int MAXN = 1005;
namespace {
int n;
vi p, op;
int tmp[MAXN];
bool res[MAXN];
int memo[MAXN][MAXN];
bool query(int a, int b) {
if (memo[a][b] == -1) {
memo[a][b] = Query(a, b);
memo[b][a] = memo[a][b] ^ 1;
}
return memo[a][b];
}
void dnc(int l, int r) {
if (l == r) {
return;
}
int m = l + r >> 1;
dnc(l, m); dnc(m + 1, r);
int pl = l, pr = m + 1;
int ptr = l;
while (pl <= m || pr <= r) {
if (pr > r || (pl <= m && !query(p[pl], p[pr]))) {
tmp[ptr++] = p[pl++];
} else {
tmp[ptr++] = p[pr++];
}
}
REP (i, l, r + 1) {
p[i] = tmp[i];
}
}
}
vi Solve(int N) {
memset(memo, -1, sizeof memo);
n = N;
p = vi(n);
iota(ALL(p), 0);
stable_sort(ALL(p));
//dnc(0, n - 1);
vi bad;
REP (i, 1, n) {
res[i] = query(p[0], p[i]);
if (res[i]) {
bad.pb(i);
}
}
bool s0 = res[1];
if (SZ(bad) == 1 && res[1] == 0) {
if (bad[0] > 2) {
if (!query(p[1], p[bad[0]])) {
swap(p[0], p[1]);
}
} else {
int cnt = 0;
REP (i, 1, n) {
if (i == bad[0]) {
continue;
}
cnt += query(p[bad[0]], p[i]);
if (cnt > 1) {
break;
}
}
if (cnt == 2) {
swap(p[0], p[1]);
}
}
s0 = 1;
}
if (!s0) {
assert(res[1] == 0);
int prv = 1;
vi v;
REP (i, 2, n) {
if (res[i] != res[i - 1]) {
v.pb(prv);
prv = i;
}
}
v.pb(prv);
assert(SZ(v) >= 2);
if (SZ(v) >= 4) {
reverse(p.begin(), p.begin() + v[2]);
} else if ((SZ(v) == 2 ? n : v[2]) - v[1] == 1) {
swap(p[0], p[1]);
} else {
reverse(p.begin(), p.begin() + v[2] - 1);
}
}
REP (i, 0, n - 1) {
if (query(p[i], p[i + 1])) {
continue;
}
int id = -1;
REP (j, i + 1, n) {
if (query(p[i], p[j])) {
id = j;
break;
}
}
assert(id != -1);
reverse(p.begin() + i + 1, p.begin() + id + 1);
i = id - 1;
}
vi t(n);
REP (i, 0, n) {
t[p[i]] = i;
}
return t;
}
Compilation message
monster.cpp: In function 'void {anonymous}::dnc(int, int)':
monster.cpp:59:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
59 | int m = l + r >> 1;
| ~~^~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Runtime error |
5 ms |
8452 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Runtime error |
5 ms |
8452 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Runtime error |
20 ms |
8484 KB |
Execution killed with signal 6 |
| 2 |
Halted |
0 ms |
0 KB |
- |
