Submission #314257

#	Time	Username	Problem	Language	Result	Execution time	Memory
314257		Trickster	Trading (IZhO13_trading)	C++14	100 / 100	730 ms	10872 KiB

trading

#include <algorithm>
#include <string.h>
#include <iostream>
#include <stdio.h>
#include <vector>
#include <queue>
#include <cmath>
#include <set>
#include <map>

using namespace std;

#define N 300010
#define ff first
#define ss second
#define ll long long
#define pb push_back
#define mod 1000000007
#define pii pair <int, int>
#define sz(a) int(a.size())
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
ll bigmod(ll a,ll e) {if(e==0)return 1;ll x=bigmod(a*a%mod,e>>1);return e&1?x*a%mod:x;}

int n, q;
int v[N];
int L[N*4];

void shift(int x, int to)
{
    L[to] = max(x, L[to]);
}

void upd(int a, int b, int x, int l, int r, int node)
{
    if(l > b || r < a) return;

    if(l >= a && r <= b) {
        // cout << l << " " << r << " " << x+l-a << "\n";

        L[node] = max(x+l-a, L[node]);
        return;
    }

    if(L[node]) {
        shift(L[node], node*2);
        shift(L[node]+(l+r)/2-l+1, node*2+1);
        L[node] = 0;
    }

    upd(a, b, x, l, (l+r)/2, node*2);
    upd(a, b, x, (l+r)/2+1, r, node*2+1);
}
int tap(int pos, int l, int r, int node)
{
    if(l == r) return L[node];

    if(L[node]) {
        shift(L[node], node*2);
        shift(L[node]+(l+r)/2-l+1, node*2+1);
        L[node] = 0;
    }

    if(pos <= (l+r)/2)
        return tap(pos, l, (l+r)/2, node*2);
    else
        return tap(pos, (l+r)/2+1, r, node*2+1);
}

int main()
{
    cin >> n >> q;

    while(q--) {
        int l, r, x;
        cin >> l >> r >> x;

        upd(l, r, x, 1, n, 1);
    }

    for(int i = 1; i <= n; i++) cout << tap(i, 1, n, 1) << " ";
}
/*
5 2
1 3 2
2 4 6

6 4
4 4 3
1 2 5
5 6 1
6 6 1
*/

Compilation message (stderr)

trading.cpp:22: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
   22 | #pragma GCC optimization ("O3")
      | 
trading.cpp:23: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
   23 | #pragma GCC optimization ("unroll-loops")
      |

• Subtask 1: 100 / 100