{"problem":{"name":"[GESP202412 二级] 寻找数字","description":{"content":"小杨有一个正整数 $a$，小杨想知道是否存在一个正整数 $b$ 满足 $a=b^4$。","description_type":"Markdown"},"platform":"Luogu","limit":{"time_limit":1000,"memory_limit":524288},"difficulty":{"LuoguStyle":"P1"},"is_remote":true,"is_sync":true,"sync_url":null,"sign":"LGB4064"},"statements":[{"statement_type":"Markdown","content":"小杨有一个正整数 $a$，小杨想知道是否存在一个正整数 $b$ 满足 $a=b^4$。\n\n## Input\n\n第一行包含一个正整数 $t$，代表测试数据组数。\n\n对于每组测试数据，第一行包含一个正整数代表 $a$。\n\n## Output\n\n对于每组测试数据，如果存在满足条件的正整数 $b$，则输出 $b$，否则输出 $-1$。\n\n[samples]\n\n## Background\n\n对应的选择、判断题：<https://ti.luogu.com.cn/problemset/1166>\n\n## Note\n\n对于全部数据，保证有 $1\\leq t\\leq 10^5$，$1\\leq a_i\\leq 10^8$。","is_translate":false,"language":"English"}],"meta":{"iden":"LGB4064","tags":["2024","GESP"],"sample_group":[["3\n16\n81\n10","2\n3\n-1"]],"created_at":"2026-03-03 11:09:25"}}