oj.uz

답안 #798017

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
798017 2023-07-30T09:24:57 Z mrwang Pinball (JOI14_pinball) C++14
100 / 100
 199 ms 15992 KB 
#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<int,int>
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=long long;
const ll maxN=2e5;
const ll inf=1e18;
const ll mod=1e9+7;
ll st[4*maxN];
ll n;
void update(ll pos,ll val,ll id=1,ll l=1,ll r=n+2)
{
    if(l==r)
    {
        st[id]=min(st[id],val);
        return;
    }
    ll mid=l+r>>1;
    if(pos<=mid) update(pos,val,id*2,l,mid);
    else update(pos,val,id*2+1,mid+1,r);
    st[id]=min(st[id*2],st[id*2+1]);
}
ll get(ll i,ll j,ll id=1,ll l=1,ll r=n+2)
{
    if(j<l||r<i) return inf;
    if(i<=l&&r<=j) return st[id];
    ll mid=l+r>>1;
    return min(get(i,j,id*2,l,mid),get(i,j,id*2+1,mid+1,r));
}
ll dp[2][maxN],a[maxN],c[maxN],d[maxN],e[maxN],b[maxN];
void cal(ll x,ll t)
{
    dp[t][0]=0;
    c[0]=x;
    fill(st,st+4*maxN,inf);
    for(int i=0;i<=n;i++)
    {
        if(i!=0)
        {
            dp[t][i]=inf;
            ll l,r;
            l=lower_bound(e+1,e+n+3,a[i])-e;
            r=upper_bound(e+1,e+n+3,b[i])-e-1;
            dp[t][i]=min(dp[t][i],get(l,r)+d[i]);
        }
        ll pos=lower_bound(e+1,e+n+3,c[i])-e;
        update(pos,dp[t][i]);
     }
}
ll m,sz=0;
void solve()
{
    cin >> n >> m;
    for(int i=1;i<=n;i++) cin >> a[i] >> b[i] >> c[i] >> d[i],e[++sz]=c[i];
    e[n+1]=1;
    e[n+2]=m;
    sort(e+1,e+n+3);
    cal(1,0);
    cal(m,1);
    ll ans=inf;
    for(int i=1;i<=n;i++)
    {
        ans=min(ans,dp[0][i]+dp[1][i]-d[i]);
    }
    if(ans!=inf) cout << ans;
    else cout << -1;
}
int main()
{
    fastio
    //freopen(TASKNAME".INP","r",stdin);
    //freopen(TASKNAME".OUT","w",stdout);
    solve();
}

Compilation message

pinball.cpp: In function 'void update(ll, ll, ll, ll, ll)':
pinball.cpp:22:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   22 |     ll mid=l+r>>1;
      |            ~^~
pinball.cpp: In function 'll get(ll, ll, ll, ll, ll)':
pinball.cpp:31:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   31 |     ll mid=l+r>>1;
      |            ~^~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6612 KB Output is correct
2 Correct 3 ms 6612 KB Output is correct
3 Correct 3 ms 6612 KB Output is correct
4 Correct 3 ms 6612 KB Output is correct
5 Correct 3 ms 6612 KB Output is correct
6 Correct 3 ms 6612 KB Output is correct
7 Correct 3 ms 6596 KB Output is correct
8 Correct 3 ms 6600 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6612 KB Output is correct
2 Correct 3 ms 6612 KB Output is correct
3 Correct 3 ms 6612 KB Output is correct
4 Correct 3 ms 6612 KB Output is correct
5 Correct 3 ms 6612 KB Output is correct
6 Correct 3 ms 6612 KB Output is correct
7 Correct 3 ms 6596 KB Output is correct
8 Correct 3 ms 6600 KB Output is correct
9 Correct 3 ms 6608 KB Output is correct
10 Correct 4 ms 6612 KB Output is correct
11 Correct 3 ms 6612 KB Output is correct
12 Correct 3 ms 6612 KB Output is correct
13 Correct 3 ms 6604 KB Output is correct
14 Correct 3 ms 6612 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6612 KB Output is correct
2 Correct 3 ms 6612 KB Output is correct
3 Correct 3 ms 6612 KB Output is correct
4 Correct 3 ms 6612 KB Output is correct
5 Correct 3 ms 6612 KB Output is correct
6 Correct 3 ms 6612 KB Output is correct
7 Correct 3 ms 6596 KB Output is correct
8 Correct 3 ms 6600 KB Output is correct
9 Correct 3 ms 6608 KB Output is correct
10 Correct 4 ms 6612 KB Output is correct
11 Correct 3 ms 6612 KB Output is correct
12 Correct 3 ms 6612 KB Output is correct
13 Correct 3 ms 6604 KB Output is correct
14 Correct 3 ms 6612 KB Output is correct
15 Correct 3 ms 6612 KB Output is correct
16 Correct 3 ms 6612 KB Output is correct
17 Correct 5 ms 6728 KB Output is correct
18 Correct 4 ms 6612 KB Output is correct
19 Correct 4 ms 6612 KB Output is correct
20 Correct 4 ms 6612 KB Output is correct
21 Correct 4 ms 6612 KB Output is correct
22 Correct 6 ms 6612 KB Output is correct
23 Correct 4 ms 6612 KB Output is correct
24 Correct 4 ms 6696 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6612 KB Output is correct
2 Correct 3 ms 6612 KB Output is correct
3 Correct 3 ms 6612 KB Output is correct
4 Correct 3 ms 6612 KB Output is correct
5 Correct 3 ms 6612 KB Output is correct
6 Correct 3 ms 6612 KB Output is correct
7 Correct 3 ms 6596 KB Output is correct
8 Correct 3 ms 6600 KB Output is correct
9 Correct 3 ms 6608 KB Output is correct
10 Correct 4 ms 6612 KB Output is correct
11 Correct 3 ms 6612 KB Output is correct
12 Correct 3 ms 6612 KB Output is correct
13 Correct 3 ms 6604 KB Output is correct
14 Correct 3 ms 6612 KB Output is correct
15 Correct 3 ms 6612 KB Output is correct
16 Correct 3 ms 6612 KB Output is correct
17 Correct 5 ms 6728 KB Output is correct
18 Correct 4 ms 6612 KB Output is correct
19 Correct 4 ms 6612 KB Output is correct
20 Correct 4 ms 6612 KB Output is correct
21 Correct 4 ms 6612 KB Output is correct
22 Correct 6 ms 6612 KB Output is correct
23 Correct 4 ms 6612 KB Output is correct
24 Correct 4 ms 6696 KB Output is correct
25 Correct 17 ms 7412 KB Output is correct
26 Correct 44 ms 8816 KB Output is correct
27 Correct 129 ms 12872 KB Output is correct
28 Correct 194 ms 15764 KB Output is correct
29 Correct 110 ms 11232 KB Output is correct
30 Correct 199 ms 15952 KB Output is correct
31 Correct 197 ms 15992 KB Output is correct
32 Correct 199 ms 15948 KB Output is correct
33 Correct 25 ms 8268 KB Output is correct
34 Correct 102 ms 11212 KB Output is correct
35 Correct 122 ms 15852 KB Output is correct
36 Correct 192 ms 15868 KB Output is correct
37 Correct 165 ms 15876 KB Output is correct
38 Correct 165 ms 15820 KB Output is correct