oj.uz

Submission #928744

# Submission time Handle Problem Language Result Execution time Memory
928744 2024-02-17T03:50:38 Z User0069 Horses (IOI15_horses) C++17
100 / 100
 178 ms 91776 KB 
#include<bits/stdc++.h>
#define taskname ""
#define el '\n'
#define fi first
#define sc second
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
//#define int ll
using namespace std;
using ll=long long;
using ull=unsigned long long;
using ld=long double;
#define Faster ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
const int maxn=1e6+1;
const int INF=1e9;
const int mod=1e9+7;
int n,x[maxn],y[maxn];
struct num
{
    long long a,b;
};
bool operator <(num x,num y)
{
    return x.a<y.a||(x.a==y.a&&x.b<y.b);
}
num operator *(num x,num y)
{
    return {(x.a||y.a||(x.b*y.b>=mod)),x.b*y.b%mod};
}
struct node
{
    num pre,suf,sum,val;
}ST[4*maxn];
node operator +(node a,node b)
{
    node res;
    if(!(a.val<a.suf*b.pre*b.val))
    {
        res.pre=a.pre;
        res.val=a.val;
        res.sum=a.sum*b.sum;
        res.suf=a.suf*b.sum;
    }
    else
    {
        res.val=b.val;
        res.suf=b.suf;
        res.sum=a.sum*b.sum;
        res.pre=b.pre*a.sum;
    }
    return res;
}
void cons(int id,int cl,int cr)
{
    if(cl==cr)
    {
        ST[id].pre=ST[id].sum={0,x[cl]};
        ST[id].suf={0,1};
        ST[id].val={0,y[cl]};
        return;
    }
    int mid=(cl+cr)/2;
    cons(id*2,cl,mid);
    cons(2*id+1,mid+1,cr);
    ST[id]=ST[id*2]+ST[id*2+1];
}
void updatex(int id,int cl,int cr,int pos,int val)
{
    if(cl>pos||cr<pos) return;
    if(cl==cr)
    {
        ST[id].pre=ST[id].sum={0,val};
        return;
    }
    int mid=(cl+cr)/2;
    if(pos<=mid) updatex(2*id,cl,mid,pos,val);
    else updatex(2*id+1,mid+1,cr,pos,val);
    ST[id]=ST[id*2]+ST[id*2+1];
}
void updatey(int id,int cl,int cr,int pos,int val)
{
    if(cl>pos||cr<pos) return;
    if(cl==cr)
    {
        ST[id].val={0,val};
        return;
    }
    int mid=(cl+cr)/2;
    if(pos<=mid) updatey(2*id,cl,mid,pos,val);
    else updatey(2*id+1,mid+1,cr,pos,val);
    ST[id]=ST[id*2]+ST[id*2+1];
}
int get()
{
    return (ST[1].pre.b*ST[1].val.b)%mod;
}
int init(int _n,int _x[],int _y[])
{
    n=_n;
    for(int i=0;i<n;i++)
    {
        x[i+1]=_x[i];
        y[i+1]=_y[i];
    }
    cons(1,1,n);
    return get();
}
int updateX(int pos,int val)
{
    ++pos;
    updatex(1,1,n,pos,val);
    return get();
}
int updateY(int pos,int val)
{
    ++pos;
    updatey(1,1,n,pos,val);
    return get();
}
//signed main()
//{
//    if (fopen(taskname".INP","r"))
//    {
//        freopen(taskname".INP","r",stdin);
//        freopen(taskname".OUT","w",stdout);
//    }
//    Faster
//    int _n;
//    cin>>_n;
//    int _x[_n],_y[_n];
//    for(int i=0;i<_n;i++)
//    {
//        cin>>_x[i];
//    }
//    for(int i=0;i<_n;i++)
//    {
//        cin>>_y[i];
//    }
//    cout<<init(_n,_x,_y)<<"\n";
//    int m;
//    cin>>m;
//    while(m--)
//    {
//        int type,pos,val;
//        cin>>type>>pos>>val;
//        if(type==1) cout<<updateX(pos,val)<<"\n";
//        else cout<<updateY(pos,val)<<"\n";
//    }
//}

Compilation message

horses.cpp: In function 'bool operator<(num, num)':
horses.cpp:23:27: warning: declaration of 'y' shadows a global declaration [-Wshadow]
   23 | bool operator <(num x,num y)
      |                       ~~~~^
horses.cpp:18:15: note: shadowed declaration is here
   18 | int n,x[maxn],y[maxn];
      |               ^
horses.cpp:23:21: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   23 | bool operator <(num x,num y)
      |                 ~~~~^
horses.cpp:18:7: note: shadowed declaration is here
   18 | int n,x[maxn],y[maxn];
      |       ^
horses.cpp: In function 'num operator*(num, num)':
horses.cpp:27:26: warning: declaration of 'y' shadows a global declaration [-Wshadow]
   27 | num operator *(num x,num y)
      |                      ~~~~^
horses.cpp:18:15: note: shadowed declaration is here
   18 | int n,x[maxn],y[maxn];
      |               ^
horses.cpp:27:20: warning: declaration of 'x' shadows a global declaration [-Wshadow]
   27 | num operator *(num x,num y)
      |                ~~~~^
horses.cpp:18:7: note: shadowed declaration is here
   18 | int n,x[maxn],y[maxn];
      |       ^
horses.cpp: In function 'int get()':
horses.cpp:96:37: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   96 |     return (ST[1].pre.b*ST[1].val.b)%mod;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 2 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4440 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4540 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4440 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4440 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4548 KB Output is correct
23 Correct 1 ms 4696 KB Output is correct
24 Correct 2 ms 4700 KB Output is correct
25 Correct 1 ms 4700 KB Output is correct
26 Correct 1 ms 4696 KB Output is correct
27 Correct 1 ms 4700 KB Output is correct
28 Correct 2 ms 4700 KB Output is correct
29 Correct 1 ms 4696 KB Output is correct
30 Correct 1 ms 4700 KB Output is correct
31 Correct 1 ms 4700 KB Output is correct
32 Correct 1 ms 4700 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 102 ms 79240 KB Output is correct
2 Correct 161 ms 91728 KB Output is correct
3 Correct 145 ms 83028 KB Output is correct
4 Correct 146 ms 86864 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4440 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4440 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4440 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4440 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 2 ms 4700 KB Output is correct
24 Correct 1 ms 4700 KB Output is correct
25 Correct 1 ms 4700 KB Output is correct
26 Correct 1 ms 4700 KB Output is correct
27 Correct 1 ms 4700 KB Output is correct
28 Correct 2 ms 4700 KB Output is correct
29 Correct 1 ms 4548 KB Output is correct
30 Correct 1 ms 4700 KB Output is correct
31 Correct 1 ms 4512 KB Output is correct
32 Correct 1 ms 4700 KB Output is correct
33 Correct 59 ms 82260 KB Output is correct
34 Correct 56 ms 82260 KB Output is correct
35 Correct 68 ms 89372 KB Output is correct
36 Correct 70 ms 89152 KB Output is correct
37 Correct 47 ms 80464 KB Output is correct
38 Correct 44 ms 81476 KB Output is correct
39 Correct 42 ms 80468 KB Output is correct
40 Correct 55 ms 84292 KB Output is correct
41 Correct 40 ms 80296 KB Output is correct
42 Correct 39 ms 80468 KB Output is correct
43 Correct 49 ms 84648 KB Output is correct
44 Correct 48 ms 84704 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 1 ms 4440 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4440 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4540 KB Output is correct
23 Correct 1 ms 4700 KB Output is correct
24 Correct 1 ms 4700 KB Output is correct
25 Correct 1 ms 4696 KB Output is correct
26 Correct 1 ms 4700 KB Output is correct
27 Correct 1 ms 4700 KB Output is correct
28 Correct 1 ms 4700 KB Output is correct
29 Correct 1 ms 4700 KB Output is correct
30 Correct 2 ms 4700 KB Output is correct
31 Correct 1 ms 4700 KB Output is correct
32 Correct 1 ms 4700 KB Output is correct
33 Correct 89 ms 82992 KB Output is correct
34 Correct 160 ms 91776 KB Output is correct
35 Correct 163 ms 83060 KB Output is correct
36 Correct 151 ms 87216 KB Output is correct
37 Correct 57 ms 82356 KB Output is correct
38 Correct 57 ms 82360 KB Output is correct
39 Correct 68 ms 89332 KB Output is correct
40 Correct 72 ms 89168 KB Output is correct
41 Correct 47 ms 80468 KB Output is correct
42 Correct 50 ms 81340 KB Output is correct
43 Correct 43 ms 80388 KB Output is correct
44 Correct 53 ms 84320 KB Output is correct
45 Correct 39 ms 80376 KB Output is correct
46 Correct 40 ms 80568 KB Output is correct
47 Correct 52 ms 84560 KB Output is correct
48 Correct 53 ms 84536 KB Output is correct
49 Correct 159 ms 84364 KB Output is correct
50 Correct 154 ms 84304 KB Output is correct
51 Correct 132 ms 90992 KB Output is correct
52 Correct 119 ms 90668 KB Output is correct
53 Correct 178 ms 82800 KB Output is correct
54 Correct 114 ms 83316 KB Output is correct
55 Correct 91 ms 81536 KB Output is correct
56 Correct 100 ms 86096 KB Output is correct
57 Correct 92 ms 81944 KB Output is correct
58 Correct 93 ms 82608 KB Output is correct
59 Correct 52 ms 84636 KB Output is correct