Submission #1098322

#	Time	Username	Problem	Language	Result	Execution time	Memory
1098322		modwwe	Matryoshka (JOI16_matryoshka)	C++17	100 / 100	285 ms	17256 KiB

matryoshka

#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC optimize("conserve-stack")
#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 = 1e18;
const int mod2 = 1e9 + 7;
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,k3,s11,t,lim,w;
int kk;
int el = 19;

main()
{
    if(fopen(task".inp","r"))
    {
        fin(task);
        fou(task);
    }
    NHP
    /// cin>>s1;
///modwwe
    phongbeo();
    // checktime
}
ib a[200001];
ic b[200001];
int ans[200001];
vector<int> v;
bool cmp(ib a,ib b)
{
    if(a.b==b.b) return a.a>b.a;
    return a.b<b.b;
}
bool  cmp2(ic a,ic b)
{
    return a.b<b.b;
}
struct seg
{
    ib t[800001];
    void upd(int node,int l,int r,int l1,int x)
    {
        if(l==r)
        {
            t[node].a+=x;
            if(t[node].a!=0) t[node].b=l;
            else t[node].b=0;
            return;
        }
        int mid=l+r>>1;
        if(l1<=mid)
            upd(node<<1,l,mid,l1,x);
        else upd(node<<1|1,mid+1,r,l1,x);
        t[node].b=max(t[node<<1].b,t[node<<1|1].b);
        t[node].a=t[node<<1].a+t[node<<1|1].a;
    }
    int get(int node,int l,int r,int l1,int r1)
    {
        if(l>r1||r<l1||t[node].b==0) return 0;
        if(l>=l1&&r<=r1) return t[node].b;
        int mid=l+r>>1;
        return  max(get(node<<1,l,mid,l1,r1),get(node<<1|1,mid+1,r,l1,r1));
    }
    int get2(int node,int l,int r,int l1,int r1 )
    {
        if(l1>r1) return 0;
        if(l>r1||r<l1||!t[node].a) return 0;
        if(l>=l1&&r<=r1) return t[node].a;
        int mid=l+r>>1;
        return get2(node<<1,l,mid,l1,r1)+get2(node<<1|1,mid+1,r,l1,r1);
    }
} st;
void upd(int x)
{
    s3=st.get(1,1,n,1,a[x].a-1);
    if(s3!=0)
        st.upd(1,1,n,s3,-1);
    st.upd(1,1,n,a[x].a,1) ;

}
void phongbeo()
{
    cin>>n>>m;
    for(int i=1; i<=n; i++)
        cin>>a[i].a>>a[i].b,v.pb(a[i].a);
    sort(a+1,a+1+n,cmp);
    sort(v.begin(),v.end());
    v.erase(unique(v.begin(),v.end()),v.end());
    for(int i=1; i<=n; i++)
        a[i].a=lower_bound(v.begin(),v.end(),a[i].a)-v.begin()+1;
    for(int i=1; i<=m; i++)
        cin>>b[i].a>>b[i].b,b[i].c=i;
    sort(b+1,b+1+m,cmp2);
    l=1;
    s11=n;
    n=v.size();
    for(int i=1; i<=m; i++)
    {
        while(l<=s11&&a[l].b<=b[i].b)
        {
            upd(l);
            l++;
        }
        s2=lower_bound(v.begin(),v.end(),b[i].a)-v.begin()+1;
        ans[b[i].c]=st.get2(1,1,n,s2,n);
    }
    for(int i=1; i<=m; i++)
        cout<<ans[i],down
    }

Compilation message (stderr)

matryoshka.cpp:37:17: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   37 | const int inf = 1e18;
      |                 ^~~~
matryoshka.cpp:69:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   69 | main()
      | ^~~~
matryoshka.cpp: In member function 'void seg::upd(int, int, int, int, int)':
matryoshka.cpp:107:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  107 |         int mid=l+r>>1;
      |                 ~^~
matryoshka.cpp: In member function 'int seg::get(int, int, int, int, int)':
matryoshka.cpp:118:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  118 |         int mid=l+r>>1;
      |                 ~^~
matryoshka.cpp: In member function 'int seg::get2(int, int, int, int, int)':
matryoshka.cpp:126:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  126 |         int mid=l+r>>1;
      |                 ~^~
matryoshka.cpp: In function 'int main()':
matryoshka.cpp:13:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 | #define fin(x) freopen(x".inp","r",stdin)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~
matryoshka.cpp:73:9: note: in expansion of macro 'fin'
   73 |         fin(task);
      |         ^~~
matryoshka.cpp:14:23: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 | #define fou(x) freopen(x".out","w",stdout)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~~
matryoshka.cpp:74:9: note: in expansion of macro 'fou'
   74 |         fou(task);
      |         ^~~

• Subtask 1: 11 / 11
• Subtask 2: 15 / 15
• Subtask 3: 25 / 25
• Subtask 4: 49 / 49