#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#ifdef DEBUG
#include "debug.h"
#else
#define debug(...) 42
#endif
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define repp(i, n, m) for (int i = (n); i < (m); ++i)
#define repr(i, n) for (int i = (n) - 1; i >= 0; --i)
#define reppr(i, n, m) for (int i = (m) - 1; i >= (n); --i)
#define each(a,x) for(auto& a : (x))
#define sz(x) int((x).size())
using vi = vector<int>;
using vvi = vector<vi>;
using vll = vector<ll>;
using pi = pair<int, int>;
using pll = pair<ll, ll>;
template <typename T, typename V> void mini(T& a, V b) {if (b < a) a = b; }
template <typename T, typename V> void maxi(T& a, V b) {if (b > a) a = b; }
const char NEG = '0', UNKNOWN = '1', POS = '2';
array<array<char, 35>, 1 << 17> arr;
void solve() {
int n, m;
cin >> n >> m;
vector<pi> ops(m);
vector<int> ans(n+1);
for (auto &[a, b] : ops) {
cin >> a >> b;
--a; --b;
}
int cnt = 1;
rep(i, n)
arr[0][i] = UNKNOWN;
for (auto [a, b] : ops) {
int newcnt = cnt;
rep(id, cnt) {
if (arr[id][a] == UNKNOWN && arr[id][b] == UNKNOWN) {
arr[newcnt] = arr[id];
arr[id][a] = arr[id][b] = NEG;
arr[newcnt][a] = arr[newcnt][b] = POS;
++newcnt;
}
else if (arr[id][a] > arr[id][b])
swap(arr[id][a], arr[id][b]);
}
cnt = newcnt;
assert(cnt <= sz(arr));
}
// debug(cnt);
rep(id, cnt) {
int first_pos = -1, last_pos = -1;
rep(i, n) if (arr[id][i] == POS)
last_pos = i;
repr(i, n) if (arr[id][i] == POS)
first_pos = i;
if (first_pos != -1) {
bool skip = false;
for (int i = first_pos; i <= last_pos; ++i) if (arr[id][i] == NEG)
skip = true;
if (skip)
continue;
for (int l = first_pos; l >= 0 && arr[id][l] != NEG; --l)
for (int r = last_pos; r < n && arr[id][r] != NEG; ++r)
ans[r - l + 1] ^= 1;
}
else {
int len = 0;
rep(i, n + 1) {
if (i != n && arr[id][i] != NEG) {
++len;
continue;
}
repp(addto, 1, len + 1)
ans[addto] ^= len + 1 - addto;
len = 0;
}
}
}
repp(i, 1, n + 1)
cout << (ans[i] & 1) << ' ';
cout << '\n';
}
int main() {
#ifdef DEBUG
const int MEMSIZE = 1024 * 1024 * 1024;
static_assert(MEMSIZE % 16 == 0);
static char stack[MEMSIZE];
asm volatile (
"mov %[newstack], %%rsp\n"
"call *%[funcptr]"
:: [funcptr] "r" (solve), [newstack] "r" (stack + MEMSIZE)
);
exit(0);
#else
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
solve();
#endif
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | #include <bits/stdc++.h> using namespace std; using ll = long long; #ifdef DEBUG #include "debug.h" #else #define debug(...) 42 #endif #define all(x) begin(x), end(x) #define rall(x) rbegin(x), rend(x) #define rep(i, n) for (int i = 0; i < (n); ++i) #define repp(i, n, m) for (int i = (n); i < (m); ++i) #define repr(i, n) for (int i = (n) - 1; i >= 0; --i) #define reppr(i, n, m) for (int i = (m) - 1; i >= (n); --i) #define each(a,x) for(auto& a : (x)) #define sz(x) int((x).size()) using vi = vector<int>; using vvi = vector<vi>; using vll = vector<ll>; using pi = pair<int, int>; using pll = pair<ll, ll>; template <typename T, typename V> void mini(T& a, V b) {if (b < a) a = b; } template <typename T, typename V> void maxi(T& a, V b) {if (b > a) a = b; } const char NEG = '0', UNKNOWN = '1', POS = '2'; array<array<char, 35>, 1 << 17> arr; void solve() { int n, m; cin >> n >> m; vector<pi> ops(m); vector<int> ans(n+1); for (auto &[a, b] : ops) { cin >> a >> b; --a; --b; } int cnt = 1; rep(i, n) arr[0][i] = UNKNOWN; for (auto [a, b] : ops) { int newcnt = cnt; rep(id, cnt) { if (arr[id][a] == UNKNOWN && arr[id][b] == UNKNOWN) { arr[newcnt] = arr[id]; arr[id][a] = arr[id][b] = NEG; arr[newcnt][a] = arr[newcnt][b] = POS; ++newcnt; } else if (arr[id][a] > arr[id][b]) swap(arr[id][a], arr[id][b]); } cnt = newcnt; assert(cnt <= sz(arr)); } // debug(cnt); rep(id, cnt) { int first_pos = -1, last_pos = -1; rep(i, n) if (arr[id][i] == POS) last_pos = i; repr(i, n) if (arr[id][i] == POS) first_pos = i; if (first_pos != -1) { bool skip = false; for (int i = first_pos; i <= last_pos; ++i) if (arr[id][i] == NEG) skip = true; if (skip) continue; for (int l = first_pos; l >= 0 && arr[id][l] != NEG; --l) for (int r = last_pos; r < n && arr[id][r] != NEG; ++r) ans[r - l + 1] ^= 1; } else { int len = 0; rep(i, n + 1) { if (i != n && arr[id][i] != NEG) { ++len; continue; } repp(addto, 1, len + 1) ans[addto] ^= len + 1 - addto; len = 0; } } } repp(i, 1, n + 1) cout << (ans[i] & 1) << ' '; cout << '\n'; } int main() { #ifdef DEBUG const int MEMSIZE = 1024 * 1024 * 1024; static_assert(MEMSIZE % 16 == 0); static char stack[MEMSIZE]; asm volatile ( "mov %[newstack], %%rsp\n" "call *%[funcptr]" :: [funcptr] "r" (solve), [newstack] "r" (stack + MEMSIZE) ); exit(0); #else ios_base::sync_with_stdio(false); cin.tie(nullptr); solve(); #endif } |
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