Submission #994517

#	Time	Username	Problem	Language	Result	Execution time	Memory
994517		SuPythony	Roller Coaster Railroad (IOI16_railroad)	C++17	0 / 100	55 ms	9536 KiB

railroad

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

bool comp(pair<int,int> a, pair<int,int> b) {
    if (a.first==b.first) return a.second<b.second;
    return a.first>b.first;
}

ll plan_roller_coaster(vector<int> s, vector<int> t) {
    vector<pair<int,int>> a;
    for (int i=0; i<s.size(); i++) {
        a.push_back({s[i],t[i]});
    }
    sort(a.begin(),a.end(),comp);
    int curr=1;
    for (auto i: a) {
        if (curr>i.first) return 1;
        curr=i.second;
    }
    return 0;
};

Compilation message (stderr)

railroad.cpp: In function 'll plan_roller_coaster(std::vector<int>, std::vector<int>)':
railroad.cpp:13:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for (int i=0; i<s.size(); i++) {
      |                   ~^~~~~~~~~

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