#include <bits/stdc++.h>
using namespace std;
#define n_l '\n'
#define dbg(...) cout << "[" << #__VA_ARGS__ << "]: "; cout << to_string(__VA_ARGS__) << endl
template <typename T, size_t N> int SIZE(const T (&t)[N]){ return N; } template<typename T> int SIZE(const T &t){ return t.size(); } string to_string(const string s, int x1=0, int x2=1e9){ return '"' + ((x1 < s.size()) ? s.substr(x1, x2-x1+1) : "") + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(const bool b) { return (b ? "true" : "false"); } string to_string(const char c){ return string({c}); } template<size_t N> string to_string(const bitset<N> &b, int x1=0, int x2=1e9){ string t = ""; for(int __iii__ = min(x1,SIZE(b)), __jjj__ = min(x2, SIZE(b)-1); __iii__ <= __jjj__; ++__iii__){ t += b[__iii__] + '0'; } return '"' + t + '"'; } template <typename A, typename... C> string to_string(const A (&v), int x1=0, int x2=1e9, C... coords); int l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A (&v), int x1, int x2, C... coords) { int rnk = rank<A>::value; string tab(t_a_b_s, ' '); string res = ""; bool first = true; if(l_v_l_v_l == 0) res += n_l; res += tab + "["; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2-x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += ", "; } first = false; l_v_l_v_l++; if(e != l){ if(rnk > 1) { res += n_l; t_a_b_s = l_v_l_v_l; }; } else{ t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += "]"; if(l_v_l_v_l == 0) res += n_l; return res; } void dbgm(){;} template<typename Heads, typename... Tails> void dbgm(Heads H, Tails... T){ cout << to_string(H) << " | "; dbgm(T...); }
#define dbgm(...) cout << "[" << #__VA_ARGS__ << "]: "; dbgm(__VA_ARGS__); cout << endl
#define int long long int
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int (i) = 0; (i) < (n); (i)++)
void fastio() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
}
const double EPS = 0.00001;
const int INF = 1e16;
const int N = 1e5+5;
const int ALPH = 26;
const int LGN = 25;
const int MOD = 1e9+7;
int n,m,q;
vector<array<int,2> > a;
vector<int> c;
vector<int> res;
struct SegTree {
vector<int> data;
int sz;
SegTree(int sz) {
data.assign(4*(sz + 3), 0);
this->sz = sz;
}
void update(int tl, int tr, int v, int ind, int val) {
if(tl == tr) {
data[v] = max(val, data[v]);
return;
}
int tm = (tl + tr) >> 1;
if(ind <= tm) {
update(tl, tm, v*2, ind, val);
}
else {
update(tm + 1, tr, v*2+1, ind, val);
}
data[v] = max(data[v*2], data[v*2+1]);
}
void update(int ind, int val) {
update(0, sz, 1, ind ,val);
}
int query(int tl, int tr, int v, int l, int r) {
if(tl >= l && tr <= r) {
return data[v];
}
if(tl > r || tr < l) {
return 0;
}
int tm = (tl + tr) >> 1;
return max(query(tl, tm, v*2, l, r), query(tm + 1, tr , v*2+1, l, r));
}
int query(int l, int r) {
return query(0, sz, 1, l, r);
}
};
void compress(vector<int> &beg, vector<int> &fin, int &mx) {
vector<array<int,2> > srt(beg.size());
for(int i = 0; i<beg.size(); i++) {
srt[i] = {beg[i], i};
}
sort(srt.begin(), srt.end());
int cur = 1;
int last = -1;
fin.resize(beg.size());
for(int i = 0; i<srt.size(); i++) {
if(srt[i][0] != last) {
cur++;
last = srt[i][0];
}
fin[srt[i][1]] = cur;
}
cur++;
mx = cur;
}
inline void solve() {
cin>>n>>m;
a.resize(n);
c.resize(m);
res.assign(m, -1);
for(int i = 0; i<n; i++) {
cin>>a[i][0]>>a[i][1];
}
for(int i = 0; i<m; i++) {
cin>>c[i];
}
sort(a.begin(), a.end());
sort(c.begin(), c.end());
int ind = 0;
set<array<int,2> > st;
for(int i = 0; i<m; i++) {
while(ind < n && a[ind][0] <= c[i]) {
st.insert({a[ind][1], ind});
ind++;
}
if(st.size()) {
res[i] = (*st.begin())[0];
st.erase(st.begin());
}
}
vector<int> tmp(0);
for(int i = 0; i<m; i++) {
if(res[i] != -1) {
tmp.pb(res[i]);
}
}
swap(tmp, res);
m = res.size();
if(m == 0) {
cout<<"0\n";
return;
}
vector<int> dp(m+3, 0);
int mx = 0;
vector<int> nw;
compress(res, nw, mx);
SegTree seg(mx);
dp[0] = 1;
seg.update(nw[0], 1ll);
for(int i = 1; i<m; i++) {
dp[i] = max(0ll, seg.query(0, nw[i])) + 1ll;
seg.update(nw[i], dp[i]);
}
int ans = 0ll;
for(int i = 0; i<m; i++) {
ans = max(ans , dp[i]);
}
cout<<ans<<"\n";
}
signed main() {
fastio();
int test = 1;
//cin>>test;
while(test--) {
solve();
}
}
Compilation message
joi2019_ho_t2.cpp: In function 'std::string to_string(std::string, int, int)':
joi2019_ho_t2.cpp:7:208: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
7 | template <typename T, size_t N> int SIZE(const T (&t)[N]){ return N; } template<typename T> int SIZE(const T &t){ return t.size(); } string to_string(const string s, int x1=0, int x2=1e9){ return '"' + ((x1 < s.size()) ? s.substr(x1, x2-x1+1) : "") + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(const bool b) { return (b ? "true" : "false"); } string to_string(const char c){ return string({c}); } template<size_t N> string to_string(const bitset<N> &b, int x1=0, int x2=1e9){ string t = ""; for(int __iii__ = min(x1,SIZE(b)), __jjj__ = min(x2, SIZE(b)-1); __iii__ <= __jjj__; ++__iii__){ t += b[__iii__] + '0'; } return '"' + t + '"'; } template <typename A, typename... C> string to_string(const A (&v), int x1=0, int x2=1e9, C... coords); int l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A (&v), int x1, int x2, C... coords) { int rnk = rank<A>::value; string tab(t_a_b_s, ' '); string res = ""; bool first = true; if(l_v_l_v_l == 0) res += n_l; res += tab + "["; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2-x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += ", "; } first = false; l_v_l_v_l++; if(e != l){ if(rnk > 1) { res += n_l; t_a_b_s = l_v_l_v_l; }; } else{ t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += "]"; if(l_v_l_v_l == 0) res += n_l; return res; } void dbgm(){;} template<typename Heads, typename... Tails> void dbgm(Heads H, Tails... T){ cout << to_string(H) << " | "; dbgm(T...); }
| ~~~^~~~~~~~~~
joi2019_ho_t2.cpp: In function 'void compress(std::vector<long long int>&, std::vector<long long int>&, long long int&)':
joi2019_ho_t2.cpp:75:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
75 | for(int i = 0; i<beg.size(); i++) {
| ~^~~~~~~~~~~
joi2019_ho_t2.cpp:82:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
82 | for(int i = 0; i<srt.size(); i++) {
| ~^~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
