Problem	4sum
User	Huoi
Submission Time	2023-03-17 21:37:45
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

4sum.cpp: In function ‘void solve()’:
4sum.cpp:35:48: error: conversion from ‘int’ to non-scalar type ‘std::pair<int, int>’ requested
35 | pair<int, int> p = u.second, q = v.second;
| ~~^~~~~~