Submission #751919

#	Time	Username	Problem	Language	Result	Execution time	Memory
751919		AndiR	Global Warming (NOI13_gw)	C++14	6 / 40	453 ms	18744 KiB

gw

#include <iostream>
#include <algorithm>

using namespace std;
const int Nmax=1000000;

struct island{
    int h, t;
}e[Nmax*2+5];
int n, v[Nmax+1];
bool cmp(island a, island b){
    return a.h<b.h;
}
int main()
{
    cin>>n;
    for (int i=0; i<n; i++)
        cin>>v[i];
    int mx=0, nris=0;
    for (int i=0; i<n; i++){
        if (mx<v[i])
            mx=v[i];
        if (v[i]<v[i-1] && v[i]<v[i+1]){
            e[nris*2].t=1; e[nris*2].h=v[i];
            e[nris*2+1].t=-1; e[nris*2+1].h=mx;
            mx=0;
            nris++;
        }
    }
    e[nris*2].t=-1; e[nris*2].h=mx;
    sort(e, e+nris*2+1, cmp);
    int crt=1, i=0; mx=1;
    while(i<=nris*2){
        while (e[i].h==e[i+1].h){
            crt+=e[i].t;
            i++;
        }
        crt+=e[i].t;
        if (crt>mx)
            mx=crt;
        i++;
    }
    cout<<mx;
    return 0;
}

• Subtask 1: 6 / 6
• Subtask 2: 0 / 6
• Subtask 3: 0 / 7
• Subtask 4: 0 / 10
• Subtask 5: 0 / 11