제출 #453412

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
453412		marcipan5000	Sure Bet (CEOI17_sure)	C++14	0 / 100	1 ms	312 KiB

sure

#include <bits/stdc++.h>

using namespace std;

int n;
long double x;
vector<int> a,b;

bool kis(int a,int b) {
    return(a>b);
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin >> n;
    a.push_back(0);
    b.push_back(0);
    for (int i=0;i<n;i++) {
        cin >> x;
        a.push_back(int(x*10000));
        cin >> x;
        b.push_back(int(x*10000));
    }

    sort(++a.begin(),a.end(),kis);
    sort(++b.begin(),b.end(),kis);
    for (int i=1;i<a.size();i++) {
        a[i]+=a[i-1];
        b[i]+=b[i-1];
    }
    int ans=0;
    int l=0;
    for (int i=0;i<a.size();i++) {
        while ((l<b.size())&&(b[l]<a[i])) {
            ans=max(ans,min(a[i],b[l])-(i+l)*10000);
            l++;
        }
        if (l<b.size()) {
            ans=max(ans,min(a[i],b[l])-(i+l)*10000);
        }
    }
    long double p=ans;
    p=p/10000;
    printf("%.4lf",(double)p);

    /*
    for (int i=0;i<a.size();i++) {
        cout << a[i] << " ";
    }
    cout << endl;
    for (int i=0;i<a.size();i++) {
        cout << b[i] << " ";
    }
    cout << endl;
    */
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

sure.cpp: In function 'int main()':
sure.cpp:28:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for (int i=1;i<a.size();i++) {
      |                  ~^~~~~~~~~
sure.cpp:34:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for (int i=0;i<a.size();i++) {
      |                  ~^~~~~~~~~
sure.cpp:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         while ((l<b.size())&&(b[l]<a[i])) {
      |                 ~^~~~~~~~~
sure.cpp:39:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         if (l<b.size()) {
      |             ~^~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 40