Submission #1105152

#	Time	Username	Problem	Language	Result	Execution time	Memory
1105152		modwwe	Growing Trees (BOI11_grow)	C++17	100 / 100	86 ms	6216 KiB

grow

#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 mask(i) (1<<i)
#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 = 1e9;
const int mod2 = 1e6+3;
const int  mod1 = 998244353;
int add(int x,int y)
{
    if(x+y>=mod2) x-=mod2;
    if(x+y<0) x+=mod2;
    return x+y;
}
struct icd
{
    long double a;
    int b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    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, mid, l2, r2, center;
int  i, s10, s12,k1,k2,k3,s11,limit,w,l,r,last,root;
int kk,invf;
int el = 19;

main()
{
    if(fopen(task".inp","r"))
    {
        fin(task);
         fou(task);
    }
    NHP
    /// cin>>s1;
///modwwe
    phongbeo();
    // checktime
}
int a[100001];
struct IT
{
    ib t[400001];
    int t2[400001];
    ib mer(ib a,ib b)
    {
        if(a.a>=b.a) return a;
        return b;
    }
    void ff(int x)
     {
         for(int i=x*2;i<=x*2+1;i++)
         {
             t2[i]+=t2[x];
         t[i].a+=t2[x];
         }
         t2[x]=0;

     }
    void build(int node,int l,int r)
    {
        if(l==r)
        {
            t[node]= {a[l],l};
            return;
        }
        int mid=l+r>>1;
        build(node<<1,l,mid);
        build(node<<1|1,mid+1,r);
        t[node]=mer(t[node<<1],t[node<<1|1]);
    }
    void upd(int node,int l,int r,int l1,int r1)
    {
        if(l>r1||r<l1) return;
        if(l>=l1&&r<=r1)
        {
            t2[node]++;
            t[node].a++;
            return;
        }
        if(t2[node]!=0)ff(node);
        int mid=l+r>>1;
        upd(node<<1,l,mid,l1,r1);
        upd(node<<1|1,mid+1,r,l1,r1);
        t[node]=mer(t[node<<1],t[node<<1|1]);
    }
    ib get(int node,int l,int r,int l1,int r1)
    {
        if(l>r1||r<l1) return {0,0};
        if(l>=l1&&r<=r1) return t[node];
        int mid=l+r>>1;
        if(t2[node]!=0)ff(node);
        return mer(get(node<<1,l,mid,l1,r1),get(node<<1|1,mid+1,r,l1,r1));
    }
    int walk(int node,int l,int r,int x)
    {
        if(x>t[1].a)return n+1;
        if(l==r) return l;
        int mid=l+r>>1;
        if(t2[node]!=0)ff(node);
        if(t[node<<1].a>=x) return walk(node<<1,l,mid,x);
        return walk(node<<1|1,mid+1,r,x);
    }
} st;
void add()
{
    cin>>l>>r;
    l--;
    if(r>st.t[1].a) return;
    r=st.walk(1,1,n,r);
    if(r+l>=n)
    {
        st.upd(1,1,n,r,n);
        return;
    }
    ib x=st.get(1,1,n,1,r+l);
    s3=st.walk(1,1,n,x.a+1)-1;
    s5=max(r+l-x.b+1,k);
    st.upd(1,1,n,s3-s5+1,s3);
    if(x.b-1>=r)
        st.upd(1,1,n,r,x.b-1);
}
void get()
{
    cin>>l>>r;
    r++;
    l=st.walk(1,1,n,l);
    r=st.walk(1,1,n,r)-1;
    cout<<r-l+1,down
}
void phongbeo()
{
    cin>>n>>m;
    for(int i=1; i<=n; i++)
        cin>>a[i];
    sort(a+1,a+1+n);
    st.build(1,1,n);

    for(int i=1; i<=m; i++)
    {
        char hihi;
        cin>>hihi;
        if(hihi=='F')
            add();
        else get();
    }
}

Compilation message (stderr)

grow.cpp:71:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   71 | main()
      | ^~~~
grow.cpp: In member function 'void IT::build(int, int, int)':
grow.cpp:111:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  111 |         int mid=l+r>>1;
      |                 ~^~
grow.cpp: In member function 'void IT::upd(int, int, int, int, int)':
grow.cpp:126:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  126 |         int mid=l+r>>1;
      |                 ~^~
grow.cpp: In member function 'ib IT::get(int, int, int, int, int)':
grow.cpp:135:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  135 |         int mid=l+r>>1;
      |                 ~^~
grow.cpp: In member function 'int IT::walk(int, int, int, int)':
grow.cpp:143:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  143 |         int mid=l+r>>1;
      |                 ~^~
grow.cpp: In function 'int main()':
grow.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)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~
grow.cpp:75:9: note: in expansion of macro 'fin'
   75 |         fin(task);
      |         ^~~
grow.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)
      |                ~~~~~~~^~~~~~~~~~~~~~~~~~~~
grow.cpp:76:10: note: in expansion of macro 'fou'
   76 |          fou(task);
      |          ^~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10