Problem	gfriendmania
User	shenshiqi
Submission Time	2025-12-10 11:56:14
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

gfriendmania.cpp:5:8: error: conversion from ‘double’ to ‘long unsigned int’ in a converted constant expression
5 | ll fen[1e9];
| ^~~
gfriendmania.cpp:5:8: error: could not convert ‘1.0e+9’ from ‘double’ to ‘long unsigned int’
gfriendmania.cpp:5:8: error: size of array ‘fen’ has non-integral type ‘double’