#include <bits/stdc++.h>
#define PB push_back
#define ST first
#define ND second
#define _ ios_base::sync_with_stdio(0); cin.tie(0);
//mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
using namespace std;
using ll = long long;
using pi = pair<int,int>;
using vi = vector<int>;
const int nax = 200 * 1000 + 10;
int l, r, m;
int deg[nax][2];
pi edge[1000 * 1000 + 10];
vector<pi> V[nax][2];
int I[nax][2];
bool vis[1000 * 1000 + 10];
int col[1000 * 1000 + 10];
int nr;
vi cycle;
void eulerCycle(int x, bool turn) {
while(I[x][turn] < (int)V[x][turn].size()) {
auto nbh = V[x][turn][I[x][turn]++];
if(!vis[nbh.ND]) {
vis[nbh.ND] = true;
eulerCycle(nbh.ST, turn^1);
cycle.PB(nbh.ND);
}
}
}
vector<pi>V2[nax][2];
void rec(int a, int b) {
if(a == b) {
for(int i = 1; i <= l; ++i) {
col[V[i][0][0].ND] = a;
}
return;
}
for(int i = 1; i <= l; ++i) {
I[i][0] = 0;
for(auto nbh : V[i][0]) {
vis[nbh.ND] = false;
}
}
for(int i = 1; i <= r; ++i) {
I[i][1] = 0;
}
cycle.clear();
for(int i = 1; i <= l; ++i) {
eulerCycle(i, 0);
}
vi cyc = cycle;
for(int i = 0; i < (int)cyc.size(); i += 2) {
V2[edge[cyc[i]].ST][0].PB({edge[cyc[i]].ND, cyc[i]});
V2[edge[cyc[i]].ND][1].PB({edge[cyc[i]].ST, cyc[i]});
}
for(int i = 1; i <= l; ++i) {
V[i][0].swap(V2[i][0]);
V2[i][0].clear();
}
for(int i = 1; i <= l; ++i) {
V[i][1].swap(V2[i][1]);
V2[i][1].clear();
}
rec(a, (a + b)/2);
for(int i = 1; i < (int)cyc.size(); i += 2) {
V2[edge[cyc[i]].ST][0].PB({edge[cyc[i]].ND, cyc[i]});
V2[edge[cyc[i]].ND][1].PB({edge[cyc[i]].ST, cyc[i]});
}
for(int i = 1; i <= l; ++i) {
V[i][0].swap(V2[i][0]);
V2[i][0].clear();
}
for(int i = 1; i <= l; ++i) {
V[i][1].swap(V2[i][1]);
V2[i][1].clear();
}
rec((a+b)/2 + 1, b);
}
int main() {_
cin >> l >> r >> m;
for(int a, b, i = 1; i <= m; ++i) {
cin >> a >> b;
edge[i] = {a, b};
deg[a][0]++;
deg[b][1]++;
V[a][0].PB({b, i});
V[b][1].PB({a, i});
//cout << i << ": " << a << " " << b << "\n";
}
int mx = 0;
for(int i = 1; i <= l; ++i) {
mx = max(mx, deg[i][0]);
}
for(int i = 1; i <= r; ++i) {
mx = max(mx, deg[i][1]);
}
int pt = 1;
while(pt < mx) pt *= 2;
int ptr = 1;
nr = m;
for(int i = 1; i <= l || deg[ptr][1] != pt; ++i) {
l = max(l, i);
while(deg[i][0] != pt) {
while(deg[ptr][1] == pt) ptr++;
deg[ptr][1]++;
deg[i][0]++;
nr++;
V[i][0].PB({ptr, nr});
V[ptr][1].PB({i, nr});
//cout << nr << ": " << i << " " << ptr << "\n";
edge[nr] = {i, ptr};
}
}
r = max(r, ptr);
rec(1, pt);
for(int i = 1; i <= m; ++i) {
cout << col[i] << "\n";
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
11 ms |
19148 KB |
Integer 6 violates the range [1, 5] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
12 ms |
19404 KB |
Integer 27 violates the range [1, 12] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
19 ms |
20664 KB |
Integer 4 violates the range [1, 3] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
30 ms |
22956 KB |
Integer 256 violates the range [1, 234] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
815 ms |
80432 KB |
Integer 4 violates the range [1, 2] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
757 ms |
80396 KB |
Integer 4 violates the range [1, 1] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
288 ms |
107892 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1091 ms |
101788 KB |
Integer 98 violates the range [1, 43] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
178 ms |
102340 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
172 ms |
102324 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
