#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define bug cout << "bug" << endl
#define speed ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0)
#define all(x) x.begin(), x.end()
#define F first
#define S second
#define pll pair <ll, ll>
#define pii pair <int, int>
#define triple pair <pair <ll, ll> , ll>
#define ull unsigned long long
#define ld long double
#define pinode pair <node*, node*>
const ll INF = 9e18 + 5;
const ll inf = 1e9 + 5;
const ll N = 1e4 + 5;
const ll shift = 2e6;
const ll mod = 998244353;
const ll mod2 = 1e9 + 9;
const ll M = 1e3 + 5;
const ll LOG = 21;
const ll sp = 263;
const ll sp2 = 9973;
const int block = 100;
const double eps = 1e-10;
int n, m, l[N], r[N], k[N], val[N], a[N], pref[N], ones[N], zeros[N], pref1[N], pref2[N];
int sb2 = 1, can = 1, sb3 = 1;
struct BIT{
int t[N];
void upd(int pos, int val){
while(pos <= N - 5){
t[pos] += val;
pos = (pos | (pos + 1));
}
}
int sum(int pos){
int res = 0;
while(pos >= 0){
res += t[pos];
pos = (pos & (pos + 1)) - 1;
}
return res;
}
int get(int l, int r){
return sum(r) - sum(l - 1);
}
} tr1, tr2;
int main(){
speed;
cin >> n >> m;
for(int i = 1; i <= m; i++){
cin >> l[i] >> r[i] >> k[i] >> val[i];
l[i]++;
r[i]++;
if(k[i] != 1)
sb2 = 0;
if(k[i] != r[i] - l[i] + 1 && k[i] != 1)
sb3 = 0;
}
if(sb2 || sb3){
for(int i = 1; i <= m; i++){
if(val[i] == 0 && k[i] == r[i] - l[i] + 1){
zeros[l[i]] += 1;
zeros[r[i] + 1] -= 1;
}
if(val[i] == 1 && k[i] == 1){
ones[l[i]] += 1;
ones[r[i] + 1] -= 1;
}
}
for(int i = 1; i <= n; i++){
zeros[i] += zeros[i - 1];
ones[i] += ones[i - 1];
}
for(int i = 1; i <= n; i++){
zeros[i] = min(zeros[i], 1);
ones[i] = min(ones[i], 1);
tr1.upd(i, zeros[i]);
tr2.upd(i, ones[i]);
if(zeros[i] == 1 && ones[i] == 1) can = 0;
}
if(!can){
cout << -1 << endl;
return 0;
}
/*
for(int i = 1; i <= n; i++){
if(zeros[i])
cout << 0 << " ";
else if(ones[i])
cout << 1 << " ";
else
cout << -1 << " ";
}
cout << endl << endl;
*/
vector <int> vt[N];
for(int i = 1; i <= m; i++){
if(val[i] == 0 && k[i] == r[i] - l[i] + 1) continue;
if(val[i] == 1 && k[i] == 1) continue;
if(val[i] == 0 && k[i] == 1){
if(tr1.get(l[i], r[i]) > 0) continue;
}
if(val[i] == 1 && k[i] == r[i] - l[i] + 1){
if(tr2.get(l[i], r[i]) > 0) continue;
}
vt[l[i]].pb(i);
}
set <pii> st;
for(int i = 1; i <= n; i++){
for(auto to : vt[i]){
st.insert({r[to], to});
}
while(st.size()){
int idx = (st.begin() -> second);
if(val[idx] == 1){
if(tr2.get(l[i], r[i]) > 0){
st.erase(st.begin());
continue;
}
}else{
if(tr1.get(l[i], r[i]) > 0){
st.erase(st.begin());
continue;
}
}
break;
}
if(st.size() && (st.begin() -> first) < i){
can = 0;
// cout << "IDX : " << (st.begin() -> first) << endl;
// return 0;
break;
}
if(zeros[i] == 0 && ones[i] == 0 && st.size()){
int idx = (st.begin() -> second);
st.erase(st.begin());
if(val[idx] == 0){
zeros[i] = 1;
tr1.upd(i, zeros[i]);
}
else{
ones[i] = 1;
tr2.upd(i, ones[i]);
}
}
while(st.size()){
int idx = (st.begin() -> second);
if(val[idx] == 1){
if(tr2.get(l[i], r[i]) > 0){
st.erase(st.begin());
continue;
}
}else{
if(tr1.get(l[i], r[i]) > 0){
st.erase(st.begin());
continue;
}
}
break;
}
}
// return 0;
// cout << "Q Q Q" << endl;
// for(auto to : st){
// cout << to.F << " " << to.S << endl;
// }
// return 0;
if(st.size() || !can){
cout << -1 << endl;
return 0;
}
for(int i = 1; i <= n; i++){
if(ones[i])
cout << 1 << " ";
else if(zeros[i])
cout << 0 << " ";
else
cout << 0 << " ";
}
}
}
/*
%I64d6
7 7
0 2 1 0
0 6 1 0
0 1 1 0
1 1 1 1
6 6 1 1
3 6 1 1
2 4 1 1
0 1 1 1 1 1 1
%I64d
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
468 KB |
Unexpected end of file - int32 expected |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
1068 KB |
Output is correct |
| 2 |
Correct |
7 ms |
952 KB |
Output is correct |
| 3 |
Correct |
6 ms |
980 KB |
Output is correct |
| 4 |
Correct |
6 ms |
980 KB |
Output is correct |
| 5 |
Correct |
3 ms |
820 KB |
Output is correct |
| 6 |
Correct |
3 ms |
852 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
1068 KB |
Output is correct |
| 2 |
Correct |
7 ms |
952 KB |
Output is correct |
| 3 |
Correct |
6 ms |
980 KB |
Output is correct |
| 4 |
Correct |
6 ms |
980 KB |
Output is correct |
| 5 |
Correct |
3 ms |
820 KB |
Output is correct |
| 6 |
Correct |
3 ms |
852 KB |
Output is correct |
| 7 |
Incorrect |
6 ms |
1104 KB |
Output isn't correct |
| 8 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
468 KB |
Unexpected end of file - int32 expected |
| 2 |
Halted |
0 ms |
0 KB |
- |
