Submission #799640

#	Time	Username	Problem	Language	Result	Execution time	Memory
799640		Khizri	Roller Coaster Railroad (IOI16_railroad)	C++17	0 / 100	147 ms	18212 KiB

railroad

#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define F first
#define S second
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
bool cmp(pii a,pii b){
    if(a.S==b.S) return a.F<b.F;
    return a.S<b.S;
}
long long plan_roller_coaster(vector<int> s, vector<int> t) {
    int n = (int) s.size();
    vector<pii>vt;
    multiset<int>st;
    for(int i=0;i<n;i++){
        vt.pb({s[i],t[i]});
        st.insert(s[i]);
    }
    sort(all(vt),cmp);
    for(int i=0;i<vt.size()-1;i++){
        st.erase(st.find(vt[i].F));
        if(*st.begin()<vt[i].S&&vt[i+1].S>vt[i].S){
            return 1;
        }
    }
    return 0;
}

Compilation message (stderr)

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:28:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(int i=0;i<vt.size()-1;i++){
      |                 ~^~~~~~~~~~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 23
• Subtask 3: 0 / 30
• Subtask 4: 0 / 36