source int64 2 2 | difficulty int64 7 25 | name stringlengths 9 60 | description stringlengths 164 7.12k | public_tests dict | private_tests dict | cf_rating int64 0 3.5k | cf_points float64 0 4k |
|---|---|---|---|---|---|---|---|
2 | 9 | 690_C1. Brain Network (easy) | One particularly well-known fact about zombies is that they move and think terribly slowly. While we still don't know why their movements are so sluggish, the problem of laggy thinking has been recently resolved. It turns out that the reason is not (as previously suspected) any kind of brain defect – it's the opposite!... | {
"input": [
"6 5\n1 2\n2 3\n3 4\n4 5\n3 6\n",
"4 4\n1 2\n2 3\n3 1\n4 1\n"
],
"output": [
"yes\n",
"no\n"
]
} | {
"input": [
"10 9\n2 3\n6 8\n10 1\n1 8\n6 7\n8 7\n10 5\n7 10\n2 5\n",
"2 1\n1 2\n",
"3 2\n1 2\n2 3\n",
"10 9\n6 5\n9 2\n4 7\n2 3\n7 3\n3 4\n10 6\n1 2\n5 8\n",
"8 7\n6 2\n1 5\n4 8\n4 7\n6 7\n8 3\n8 1\n",
"3 3\n2 1\n1 3\n3 2\n",
"10 9\n3 2\n4 1\n6 1\n7 1\n9 2\n6 9\n5 2\n7 9\n3 7\n",
"20... | 1,300 | 0 |
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