C++(g++ 7.5.0) 解法, 执行用时: 47ms, 内存消耗: 508K, 提交时间: 2023-08-13 21:16:45

#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll a,b,l,r,t,q;
int main(){
    cin>>t;
    while(t--){
        cin>>a>>b>>l>>r;
        q=(b-a)/l;
        if(r*q<(b-a)) cout<<-1<<'\n';
        else cout<<(b-a-1+r)/r<<" "<<(b-a)/l<<"\n";
    }
    return 0;
}

Python3 解法, 执行用时: 219ms, 内存消耗: 4696K, 提交时间: 2023-08-13 23:02:13

import math

T = int(input())

for _ in range(T):
    a, b, l, r = map(int,input().split())
    num = b-a
    min_num = math.ceil(num/r)
    max_num = math.floor(num/l)
    if min_num > max_num:
        print(-1)
    else:
        print(min_num,max_num)

C++(clang++ 11.0.1) 解法, 执行用时: 47ms, 内存消耗: 568K, 提交时间: 2023-08-14 09:49:50

#include<bits/stdc++.h>
using namespace std;
int main()
{
    long long t,a,b,l,r,c;
    cin>>t;
    while(t--)
    {
        cin>>a>>b>>l>>r;
        c=b-a;
        if(c/l*(r-l)<c%l)cout<<-1<<endl;
        else cout<<(c+r-1)/r<<' '<<c/l<<endl;
    }
}

pypy3 解法, 执行用时: 163ms, 内存消耗: 26984K, 提交时间: 2023-08-13 20:33:52

import sys
input = sys.stdin.readline

for _ in range(int(input())):
    a, b, l, r = map(int, input().split())
    diff = b - a
    mn, mx = (diff + r - 1) // r, diff // l
    if mx < mn:
        print(-1)
    else:
        print(mn, mx)