Submission #441175

#	Time	Username	Problem	Language	Result	Execution time	Memory
441175		leaked	Simple game (IZhO17_game)	C++14	100 / 100	77 ms	6912 KiB

game

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//    #pragma GCC optimize("-O3")
//    #pragma GCC optimize("no-stack-protector")
//    #pragma GCC optimize("fast-math")
//    #pragma GCC optimize("Ofast")
//    #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx")
//    #pragma GCC target("avx,avx2,fma")
//    #pragma GCC optimization ("unroll-loops")
using namespace std;
#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename \
  enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
#ifndef LOCAL
~debug() { cerr << endl; }
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
  ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
  *this << "[";
  for (auto it = d.b; it != d.e; ++it)
	*this << ", " + 2 * (it == d.b) << *it;
  ris << "]";
}
#else
sim dor(const c&) { ris; }
#endif
};
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
//using namespace __gnu_pbds;
#define fast_io ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
#define vec vector
#define getin freopen("input.txt","r",stdin);
#define getout ofstream cout("output.txt");
#define getfiles getin;getout
#define m_p make_pair
#define f first
#define sz(x) (int)x.size()
#define pw(x) (1LL<<x)
#define pb push_back
#define endl '\n'
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define s second
typedef pair<int,int> pii;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<ll,ll> pll;
typedef pair<ll,int> pli;
typedef pair<int,ll> pil;
typedef long double ld;
template<typename T>bool umax(T &a,const T &b)  {return (a<b?a=b,1:0);}
template<typename T>bool umin(T &a,const T &b)  {return (a>b?a=b,1:0);}
const int N=1e6+3;
int fnw[N];
void add(int v,int x){
    v++;
    while(v<N){
        fnw[v]+=x;
        v+=v&-v;
    }
}
int get(int v){
    v++;
    int ans=0;
    while(v>0){
        ans+=fnw[v];
        v-=v&-v;
    }
    return ans;
}
signed main(){
//    ifstream cin("game.in");
//    ofstream cout("game.out");
    fast_io;
    int n,q;
    cin>>n>>q;
    vec<int>a(n);
    for(auto &z : a)
        cin>>z;
    for(int i=0;i+1<n;i++){
        int l=min(a[i],a[i+1]),r=max(a[i],a[i+1]);
        add(l,1);
        add(r+1,-1);
    }
    while(q--){
        int tp;
        cin>>tp;
        if(tp==1){
            int i,vl;
            cin>>i>>vl;--i;
            if(i){
                int l=min(a[i],a[i-1]),r=max(a[i],a[i-1]);
                add(l,-1);
                add(r+1,1);
            }
            if(i+1<n){
                int l=min(a[i],a[i+1]),r=max(a[i],a[i+1]);
                add(l,-1);
                add(r+1,1);
            }
            a[i]=vl;
            if(i){
                int l=min(a[i],a[i-1]),r=max(a[i],a[i-1]);
                add(l,1);
                add(r+1,-1);
            }
            if(i+1<n){
                int l=min(a[i],a[i+1]),r=max(a[i],a[i+1]);
                add(l,1);
                add(r+1,-1);
            }
        }
        else{
            int h;
            cin>>h;
            cout<<get(h)<<endl;
        }
    }
    return 0;
}
/*


*/

• Subtask 1: 22 / 22
• Subtask 2: 27 / 27
• Subtask 3: 51 / 51