Submission #966292

#	Time	Username	Problem	Language	Result	Execution time	Memory
966292		anango	Roller Coaster Railroad (IOI16_railroad)	C++17	0 / 100	97 ms	6724 KiB

railroad

#include "railroad.h"
#include <bits/stdc++.h>
using namespace std;
#define int long long

int plan_roller_coaster(std::vector<int32_t> s, std::vector<int32_t> t) {
    int n = (int) s.size();
    int INF=10000000000000007;
    vector<int> S1;
    vector<int> S2;
    for (int i=0; i<n; i++) {
        S1.push_back(s[i]);
        S2.push_back(t[i]);
    }
    sort(S1.begin(), S1.end());
    sort(S2.begin(), S2.end());

    int fail=0;
    for (int i=0; i<n; i++) {
        int ind=(upper_bound(S2.begin(), S2.end(),(S1[i]))-S2.begin());
        int i1=(upper_bound(S1.begin(), S1.end(), (S1[i]))-S1.begin());
        if (ind>i1+1) {
            fail=1;
        }

    }
    for (int i=0; i<n; i++) {
        int ind=(upper_bound(S2.begin(), S2.end(),(S1[i]-1))-S2.begin());
        int i1=(upper_bound(S1.begin(), S1.end(), (S1[i]-1))-S1.begin());
        if (ind>i1+1) {
            fail=1;
        }

    }
    return fail;
}

Compilation message (stderr)

railroad.cpp: In function 'long long int plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:8:9: warning: unused variable 'INF' [-Wunused-variable]
    8 |     int INF=10000000000000007;
      |         ^~~

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