Submission #1792444
Source Code Expand
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,P> P1;
typedef pair<P,P> P2;
#define pu push
#define pb push_back
#define mp make_pair
#define eps 1e-7
#define INF 1000000000
#define mod 1000000007
#define fi first
#define sc second
#define rep(i,x) for(int i=0;i<x;i++)
#define repn(i,x) for(int i=1;i<=x;i++)
#define SORT(x) sort(x.begin(),x.end())
#define ERASE(x) x.erase(unique(x.begin(),x.end()),x.end())
#define POSL(x,v) (lower_bound(x.begin(),x.end(),v)-x.begin())
#define POSU(x,v) (upper_bound(x.begin(),x.end(),v)-x.begin())
struct segtree{
#define s (1<<18)
int seg[s];
void init(){
fill(seg,seg+s,-1e9);
}
void update(int k,int a){
k+=s/2-1; seg[k]=max(seg[k],a);
while(k>0){
k=(k-1)/2;
seg[k]=max(seg[k*2+1],seg[k*2+2]);
}
}
int query(int a,int b,int k,int l,int r){
if(r<a || b<l || b<a) return -1e9;
if(a<=l && r<=b) return seg[k];
else{
int vl=query(a,b,k*2+1,l,(l+r)/2);
int vr=query(a,b,k*2+2,(l+r)/2+1,r);
return max(vl,vr);
}
}
}seg1,seg2;
int n,m; P p[100005];
int main(){
cin>>n>>m;
rep(i,n){
int a,b;
cin>>a>>b; a++;
p[i] = mp(a,b);
}
seg1.init(); seg2.init();
sort(p,p+n);
seg1.update(0,0);
seg2.update(0,0);
int ans = 0;
for(int i=0;i<n;i++){
int L = p[i].fi,R = L-1+p[i].sc,dp = -1e9;
int v = seg1.query(0,L-1,0,0,(1<<17)-1);
dp = max(dp,v+p[i].sc);
int v2 = seg2.query(L,R-1,0,0,(1<<17)-1);
dp = max(dp,v2+R+L-1);
ans = max(ans,dp);
seg1.update(R,dp);
seg2.update(R,dp-2*R);
}
cout<<ans<<endl;
}
Submission Info
Submission Time |
|
Task |
H - 焼肉の達人 |
User |
IH19980412 |
Language |
C++14 (GCC 5.4.1) |
Score |
100 |
Code Size |
1625 Byte |
Status |
AC |
Exec Time |
125 ms |
Memory |
3072 KB |
Judge Result
Set Name |
Sample |
All |
Score / Max Score |
0 / 0 |
100 / 100 |
Status |
|
|
Set Name |
Test Cases |
Sample |
sample-01.txt, sample-02.txt |
All |
sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 01-27.txt, 01-28.txt, 01-29.txt, 01-30.txt, 01-31.txt, 01-32.txt, 01-33.txt, 01-34.txt, 01-35.txt, 01-36.txt, 01-37.txt, 01-38.txt, 01-39.txt, 01-40.txt, 01-41.txt, 01-42.txt, 01-43.txt, 01-44.txt, 01-45.txt, 01-46.txt, 01-47.txt, 01-48.txt, 01-49.txt, sample-01.txt, sample-02.txt |
Case Name |
Status |
Exec Time |
Memory |
01-01.txt |
AC |
3 ms |
2304 KB |
01-02.txt |
AC |
57 ms |
3072 KB |
01-03.txt |
AC |
2 ms |
2304 KB |
01-04.txt |
AC |
66 ms |
3072 KB |
01-05.txt |
AC |
76 ms |
3072 KB |
01-06.txt |
AC |
87 ms |
3072 KB |
01-07.txt |
AC |
65 ms |
3072 KB |
01-08.txt |
AC |
71 ms |
3072 KB |
01-09.txt |
AC |
78 ms |
3072 KB |
01-10.txt |
AC |
3 ms |
2304 KB |
01-11.txt |
AC |
2 ms |
2304 KB |
01-12.txt |
AC |
2 ms |
2304 KB |
01-13.txt |
AC |
2 ms |
2304 KB |
01-14.txt |
AC |
6 ms |
2432 KB |
01-15.txt |
AC |
122 ms |
3072 KB |
01-16.txt |
AC |
124 ms |
3072 KB |
01-17.txt |
AC |
123 ms |
3072 KB |
01-18.txt |
AC |
123 ms |
3072 KB |
01-19.txt |
AC |
89 ms |
3072 KB |
01-20.txt |
AC |
92 ms |
3072 KB |
01-21.txt |
AC |
95 ms |
3072 KB |
01-22.txt |
AC |
97 ms |
3072 KB |
01-23.txt |
AC |
97 ms |
3072 KB |
01-24.txt |
AC |
98 ms |
3072 KB |
01-25.txt |
AC |
99 ms |
3072 KB |
01-26.txt |
AC |
100 ms |
3072 KB |
01-27.txt |
AC |
104 ms |
3072 KB |
01-28.txt |
AC |
109 ms |
3072 KB |
01-29.txt |
AC |
110 ms |
3072 KB |
01-30.txt |
AC |
114 ms |
3072 KB |
01-31.txt |
AC |
2 ms |
2304 KB |
01-32.txt |
AC |
3 ms |
2304 KB |
01-33.txt |
AC |
2 ms |
2304 KB |
01-34.txt |
AC |
4 ms |
2304 KB |
01-35.txt |
AC |
12 ms |
2432 KB |
01-36.txt |
AC |
3 ms |
2304 KB |
01-37.txt |
AC |
2 ms |
2304 KB |
01-38.txt |
AC |
13 ms |
2432 KB |
01-39.txt |
AC |
4 ms |
2304 KB |
01-40.txt |
AC |
5 ms |
2304 KB |
01-41.txt |
AC |
80 ms |
3072 KB |
01-42.txt |
AC |
79 ms |
3072 KB |
01-43.txt |
AC |
90 ms |
3072 KB |
01-44.txt |
AC |
90 ms |
3072 KB |
01-45.txt |
AC |
89 ms |
3072 KB |
01-46.txt |
AC |
125 ms |
3072 KB |
01-47.txt |
AC |
91 ms |
3072 KB |
01-48.txt |
AC |
99 ms |
3072 KB |
01-49.txt |
AC |
114 ms |
3072 KB |
sample-01.txt |
AC |
3 ms |
2304 KB |
sample-02.txt |
AC |
2 ms |
2304 KB |