#include <iostream>
#include <bits/stdc++.h>
#include <cmath>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <stack>
#include <string>
#include <map>
#include <queue>
#define int long long
#define sqrt sqrtl
using namespace std;
const long long oo = 1000000000000000000;
long long sum, ans = 0, mx = 0, mn = 1000000000, num, pos;
/*
ViHHiPuh
(( `'-""``""-'` ))
)-__-_.._-__-(
/ --- (o _ o) --- \
\ .-* ( .0. ) *-. /
_'-. ,_ '=' _, .-'_
/ `;#'#'# - #'#'#;` \
\_)) -----'#'----- ((_/
# --------- #
'# ------- ------ #'
/..-'# ------- #'-.\
_\...-\'# -- #'/-.../_
((____)- '#' -(____))
cout << fixed << setprecision(6) << x;
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
freopen ( "sum.in", "r", stdin )
*/
vector <pair<int, int> > v;
vector <int> vv;
map <int, int> mp;
int a[ 100001 ], x, y, dp[ 100001 ], p[ 100001 ], d[ 100001 ], pr[ 100001 ], n, m;
pair<int, int> t[ 400001 ], an;
int fin( int x ) {
int l = 0, r = m, mid;
if ( a[ m ] < x )
return -1;
while ( r > l ) {
mid = ( r + l ) / 2;
if ( a[ mid ] >= x ) {
r = mid;
}
else
l = mid + 1;
}
return l;
}
pair<int, int> add( pair<int, int> a, pair<int, int> b ) {
if ( a.first > b.first )
return a;
else if ( b.first > a.first )
return b;
if ( a.second < b.second )
return a;
else
return b;
}
void upd( int v, int tl, int tr, int pos ) {
if ( tl > pos || tr < pos )
return;
if ( tl == tr ) {
t[ v ] = add( an, t[ v ] );
return;
}
int mid = ( tl + tr ) / 2;
upd( v + v, tl, mid, pos );
upd( v + v + 1, mid + 1, tr, pos );
t[ v ] = add( t[ v + v ], t[ v + v + 1 ] );
}
void gett( int v, int tl, int tr, int l, int r ) {
if ( tl > r || tr < l )
return;
if ( tl >= l && tr <= r ) {
// cout << v << " - " << t[ v ].first << " " << t[ v ].second << "---\n";
an = add( an, t[ v ] );
return;
}
int mid = ( tl + tr ) / 2;
gett( v + v, tl, mid, l, r );
gett( v + v + 1, mid + 1, tr, l, r );
}
bool cmp( pair<int, int> a, pair<int, int> b ) {
if ( a.second != b.second )
return a.second < b.second;
return a.first < b.first;
}
main () {
cin >> n;
cin >> m;
for ( int i = 1; i <= n; i ++ ) {
cin >> x >> y;
v.push_back( { x, y } );
vv.push_back( y );
}
sort( vv.begin(), vv.end() );
for ( int i = 0; i < vv.size(); i ++ ) {
if ( !mp[ vv[ i ] ] )
mp[ vv[ i ] ] = ++num;
}
for ( int i = 0; i < v.size(); i ++ ) {
v[ i ].second = mp[ v[ i ].second ];
}
sort( v.begin(), v.end(), cmp );
for ( int i = 1; i <= m; i ++ )
cin >> a[ i ];
sort( a + 1, a + m + 1 );
for ( int i = 0; i < v.size(); i ++ ) {
an.first = 0;
num = fin( v[ i ].first );
if ( num == -1 )
continue;
an.second = 0;
gett( 1, 1, n, 1, v[ i ].second );
if ( an.first != 0 ) {
if ( an.second != m ) {
an.first ++;
an.second = max( num, an.second + 1 );
}
}
else {
an.first = 1;
an.second = num;
}
// cout << v[ i ].first << " " << v[ i ].second << " - " << an.first << " " << an.second << "\n";
upd( 1, 1, n, v[ i ].second );
ans = max( ans, an.first );
}
cout << ans;
}
Compilation message
joi2019_ho_t2.cpp:113:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
113 | main () {
| ^~~~
joi2019_ho_t2.cpp: In function 'int main()':
joi2019_ho_t2.cpp:122:21: 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]
122 | for ( int i = 0; i < vv.size(); i ++ ) {
| ~~^~~~~~~~~~~
joi2019_ho_t2.cpp:126:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
126 | for ( int i = 0; i < v.size(); i ++ ) {
| ~~^~~~~~~~~~
joi2019_ho_t2.cpp:133:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
133 | for ( int i = 0; i < v.size(); i ++ ) {
| ~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 6 |
Halted |
0 ms |
0 KB |
- |
