Submission #1094270

#	Time	Username	Problem	Language	Result	Execution time	Memory
1094270		modwwe	Escape Route 2 (JOI24_escape2)	C++17	100 / 100	311 ms	60500 KiB

Main

#pragma GCC optimize("Ofast,unroll-loops")
#include<bits/stdc++.h>
#define int long long
//#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
#define getchar_unlocked getchar

inline int scan()
{
    char c = getchar_unlocked();
    int x = 0;
    while (c < '0' || c > '9')
    {
        c = getchar_unlocked();
    }
    while (c >= '0' && c <= '9')
    {
        x = (x << 1) + (x << 3) + c - '0';
        c = getchar_unlocked();
    }
    return x;
}

void phongbeo();
const int inf = 1e17;
const int mod2 = 1e9 + 9;
const int  mod1 = 998244353;
struct icd
{
    long double a;
    int b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a, b, c;
};
struct id
{
    int a, b, c, d;
};
struct ie
{
    int a, b, c, d, e;

};

int n, m, s1, s2, s4, s3, sf, k, s5, s6, mx, s7, s8, s9, mx2, res, dem2 = 0, dem = 0, s33, dem3, dem4, l, r, mid, l2, r2, center;
int  i, s10, s12,k1,k2,s11;
int kk;
int el = 19;
main()
{
   //fin(task);
   //   fou(task);
    NHP
    /// cin>>s1;
///modwwe
    phongbeo();
    // checktime
}
int s,t;
vector<ib> a[100001];
int b[100001];
vector<int> c[100001];
int ans[300001];
ib d[100001];
ib st[17][100001];
int f[100001];
int cd[100001];
ib dp[100001];
vector<int> vv;
vector<ib> v[100001];
int S=30;
bool cmp(ib a,ib b)
{
    return a.a<b.a;
}
void phongbeo()
{
    cin>>n>>t;
    for(int i=1; i<n; i++)
    {
        cin>>k;
        b[i]=k;
        a[i].resize(k+1);
        c[i].resize(k+1);
        s9+=k;
        for(int j=1; j<=k; j++)
            cin>>a[i][j].a>>a[i][j].b,c[i][j]=++dem,d[dem]= {i,j};
                    sort(a[i].begin()+1,a[i].end(),cmp);
        for(int j=k-1; j>=1; --j)
            a[i][j].b=min(a[i][j].b,a[i][j+1].b);
    }
    for(int i=1; i<n-1; i++)
    {
        vv.clear();
        for(int j=1; j<=b[i+1]; j++)
            vv.pb(a[i+1][j].a);
        for(int j=1; j<=b[i]; j++)
        {
            if(a[i][j].b>vv.back())
            {
                s3=vv[0]+t-a[i][j].a;
                st[0][c[i][j]]= {c[i+1][1],s3};
            }
            else
            {
                s2=lower_bound(vv.begin(),vv.end(),a[i][j].b)-vv.begin()+1;
                s3=a[i+1][s2].a-a[i][j].a;
                st[0][c[i][j]]= {c[i+1][s2],s3};
            }
        }
    }
    for(int i=1; i<17; i++)
        for(int j=1; j<=s9; j++)
            st[i][j].a=st[i-1][st[i-1][j].a].a,
                    st[i][j].b=st[i-1][j].b+st[i-1][st[i-1][j].a].b;
    s5=n+1;
    for(int i=n-1; i>=1; --i)
    {
        if(b[i]<=S)s5=i;
        f[i]=s5;
    }
    cin>>m;
    for(int i=1; i<=m; i++)
    {
        cin>>l>>r;
        if(l==r)
        {
            ans[i]=0;
            continue;
        }
        if(b[l]>S)
            v[l].pb({r,i});
        else
        {
            for(int j=1; j<=b[l]; j++)
            {
                s=r-l-1;
                s3=c[l][j];
                s4=0;
                for(s; s; s-=s&-s)
                {
                    int  g=31-__builtin_clz(s&-s);
                    s4+=st[g][s3].b;
                    s3=st[g][s3].a;
                }

                if(j==1)s5=s4+a[r-1][d[s3].b].b-a[r-1][d[s3].b].a;
                else s5=min(s4+a[r-1][d[s3].b].b-a[r-1][d[s3].b].a,s5);
            }
            ans[i]=s5;
        }
    }
    for(int i=1; i<n; i++)
    {

        if(v[i].size()!=0)
        {
                    for(int j=1; j<=b[i];j++)
            dp[j]= {c[i][j],0};
            sort(v[i].begin(),v[i].end(),cmp);
            bool de=0;
            s4=i;
            s9=-1;
            for(auto x:v[i])
            {
                if(x.a==s9){ans[x.b]=s6; continue;}
                s6=inf;
                if(x.a<=f[i])
                {
                    for(int j=1; j<=b[i]; j++)
                    {
                        s3=dp[j].a;
                        s5=dp[j].b;
                        s=x.a-s4-1;
                        for(s; s; s-=s&-s)
                        {
                                s7=31-__builtin_clz(s&-s);
                            s5+=st[s7][s3].b;
                            s3=st[s7][s3].a;
                        }
                        s6=min(s6,s5+a[x.a-1][d[s3].b].b-a[x.a-1][d[s3].b].a);
                        dp[j]= {s3,s5};
                    }
                    s4=x.a-1;
                }
                else
                {
                    if(!de)
                    {
                        for(int j=1; j<=b[f[i]]; j++)
                            cd[c[f[i]][j]]=inf;
                        for(int j=1; j<=b[i]; j++)
                        {
                            s3=dp[j].a;
                            s5=dp[j].b;
                            s=f[i]-s4;
                            for(s; s; s-=s&-s)
                            {
                                s7=31-__builtin_clz(s&-s);
                                s5+=st[s7][s3].b;
                                s3=st[s7][s3].a;
                            }
                            //dp[j]= {s3,s5};
                            cd[s3]=min(cd[s3],s5);

                        }
                    }
                    de=1;
                    for(int j=1; j<=b[f[i]]; j++)
                    {
                        s=x.a-f[i]-1;
                        s3=c[f[i]][j];
                        s5=cd[s3];
                        for(s; s; s-=s&-s)
                    {
                                s7=31-__builtin_clz(s&-s);
                            s5+=st[s7][s3].b;
                            s3=st[s7][s3].a;
                        }
                        s6=min(s6,s5+a[x.a-1][d[s3].b].b-a[x.a-1][d[s3].b].a);
                    }
                }
                s9=x.a;
            ans[x.b]=s6;
            }
        }
    }
    for(int i=1;i<=m;i++)
        cout<<ans[i],down
}

Compilation message (stderr)

Main.cpp:67:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   67 | main()
      | ^~~~
Main.cpp: In function 'void phongbeo()':
Main.cpp:158:21: warning: statement has no effect [-Wunused-value]
  158 |                 for(s; s; s-=s&-s)
      |                     ^
Main.cpp:193:29: warning: statement has no effect [-Wunused-value]
  193 |                         for(s; s; s-=s&-s)
      |                             ^
Main.cpp:215:33: warning: statement has no effect [-Wunused-value]
  215 |                             for(s; s; s-=s&-s)
      |                                 ^
Main.cpp:232:29: warning: statement has no effect [-Wunused-value]
  232 |                         for(s; s; s-=s&-s)
      |                             ^

• Subtask 1: 6 / 6
• Subtask 2: 8 / 8
• Subtask 3: 17 / 17
• Subtask 4: 23 / 23
• Subtask 5: 36 / 36
• Subtask 6: 10 / 10