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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#159255 | #7105. Pixel Art | ucup-team198# | WA | 625ms | 12644kb | C++23 | 4.7kb | 2023-09-02 17:41:56 | 2023-09-02 17:41:57 |
Judging History
answer
#include <algorithm>
#include <iostream>
#include <numeric>
#include <vector>
#include <tuple>
#include <map>
#include <set>
using namespace std;
constexpr int N=1e5+10;
// #define ONLINE_JUDGE
#ifndef ONLINE_JUDGE
#include <heltim7/debug>
#else
#define debug(...) 7
#endif
#define endl '\n'
struct DSU {
vector<int> fa;
int find(int x) {
return x==fa[x]?x:fa[x]=find(fa[x]);
}
bool join(int x,int y) {
x=find(x);
y=find(y);
if(x==y) return false;
fa[y]=x;
return true;
}
void init(int n) {
fa.resize(n+1);
iota(fa.begin(),fa.end(),0);
}
};
struct SegSet {
struct Seg
{
int l;
mutable int r,p;
bool operator<(const Seg &x) const {
return l<x.l;
}
friend ostream &operator<<(ostream &os,const Seg &x) {
return os<<"["<<x.l<<"->"<<x.r<<"="<<x.p<<"]";
}
};
DSU dsu;
set<int> dif;
set<Seg> st;
void insert(int l,int r,int p) {
auto lit=--st.upper_bound({l-1});
auto rit=--st.upper_bound({r+1});
if(lit->r<l-1) lit++;
int mnl=l,mxr=r;
if(lit->r>=l-1&&rit->l<=r+1) {
mnl=min(mnl,lit->l);
mxr=max(mxr,rit->r);
rit++;
while(lit!=rit) {
int fa=dsu.find(lit->p);
dsu.join(p,fa);
dif.erase(fa);
dif.insert(p);
lit=st.erase(lit);
}
}
dif.insert(p);
st.emplace(mnl,mxr,p);
}
auto split(int pos) {
auto it=st.lower_bound({pos});
if(it->l==pos) return it;
it--;
auto [l,r,fa]=*it;
st.erase(it);
st.emplace(l,pos-1,fa);
return st.emplace(pos,r,fa).first;
}
void erase(int l,int r) {
auto it=split(l);
auto [L,R,fa]=*it;
st.erase(it);
if(r<R) st.emplace(r+1,R,fa);
}
SegSet(int n) {
dsu.init(n);
st.emplace(-1,-1,-1);
st.emplace(N,N,N);
}
};
void solve() {
int n,m,k;
cin>>n>>m>>k;
vector<int> s(n+2);
using T=tuple<bool,int,int,int>;
auto vec=vector(n+2,vector<T>());
for(int i=1;i<=k;i++) {
int r1,r2,c1,c2;
cin>>r1>>c1>>r2>>c2;
if(r1==r2) {
vec[r1].emplace_back(1,c1,c2,i);
vec[r1+1].emplace_back(0,c1,c2,i);
s[r1]+=c2-c1+1;
s[r2+1]-=c2-c1+1;
}
else {
vec[r1].emplace_back(1,c1,c1,i);
vec[r2+1].emplace_back(0,c1,c1,i);
s[r1]++;
s[r2+1]--;
}
}
for(int i=1;i<=n;i++) s[i]+=s[i-1];
for(int i=1;i<=n;i++) s[i]+=s[i-1];
auto format=[&](vector<T> &v) {
vector<int> num(1,-1);
for(auto [add,l,r,id]:v) {
num.emplace_back(l);
num.emplace_back(r);
num.emplace_back(l-1);
num.emplace_back(r+1);
}
sort(num.begin(),num.end());
num.erase(unique(num.begin(),num.end()),num.end());
auto get=[&](int x) {
return lower_bound(num.begin(),num.end(),x)-num.begin();
};
int n=num.size();
vector<int> sign(n+2),vid(n+2);
for(auto [add,l,r,id]:v) {
l=get(l),r=get(r);
if(add) {
sign[l]+=2;
sign[r+1]-=2;
}
else {
sign[l]--;
sign[r+1]++;
}
for(int i=l;i<=r;i++) vid[i]=id;
}
partial_sum(sign.begin(),sign.end(),sign.begin());
vector<T> res;
for(int i=1,last=i;i<sign.size();i++) {
if(sign[i]!=sign[last]) {
if(sign[last]) {
res.emplace_back(sign[last]>0?1:0,num[last],num[i-1],vid[last]);
}
last=i;
}
}
v=res;
sort(v.begin(),v.end());
};
for(int i=1;i<=n;i++) if(vec[i].size()) format(vec[i]);
SegSet st(k);
for(int i=1;i<=n;i++) {
if(vec[i].size()) {
for(auto [add,l,r,id]:vec[i]) {
if(add) {
st.insert(l,r,id);
}
else {
st.erase(l,r);
}
}
debug(st.st);
debug(st.dif);
}
cout<<s[i]<<' '<<st.dif.size()<<endl;
}
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t;
cin>>t;
while(t--) solve();
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 2ms
memory: 3576kb
input:
3 2 5 2 1 1 1 2 2 3 2 5 2 5 2 1 1 1 3 2 3 2 5 3 3 3 1 1 1 2 3 1 3 2 1 3 2 3
output:
2 1 5 2 3 1 6 1 3 1 4 1 6 2
result:
ok 7 lines
Test #2:
score: -100
Wrong Answer
time: 625ms
memory: 12644kb
input:
2130 2 5 2 1 1 1 2 2 3 2 5 2 5 2 1 1 1 3 2 3 2 5 3 3 3 1 1 1 2 3 1 3 2 1 3 2 3 3 100 51 1 2 2 2 1 4 2 4 1 6 2 6 1 8 2 8 1 10 2 10 1 12 2 12 1 14 2 14 1 16 2 16 1 18 2 18 1 20 2 20 1 22 2 22 1 24 2 24 1 26 2 26 1 28 2 28 1 30 2 30 1 32 2 32 1 34 2 34 1 36 2 36 1 38 2 38 1 40 2 40 1 42 2 42 1 44 2 44 ...
output:
2 1 5 2 3 1 6 1 3 1 4 1 6 2 50 50 100 50 200 1 50 50 150 1 200 1 2 1 4 1 6 1 8 1 10 1 12 1 14 1 16 1 18 1 20 1 22 1 24 1 26 1 28 1 30 1 32 1 34 1 36 1 38 1 40 1 42 1 44 1 46 1 48 1 50 1 52 1 54 1 56 1 58 1 60 1 62 1 64 1 66 1 68 1 70 1 72 1 74 1 76 1 78 1 80 1 82 1 84 1 86 1 88 1 90 1 92 1 94 1 96 1...
result:
wrong answer 10239th lines differ - expected: '109 5', found: '109 6'