Submission #7477857


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from collections import defaultdict, deque, Counter
from heapq import heappush, heappop, heapify
import math
import bisect
import random
from itertools import permutations, accumulate, combinations
import sys
import string
from bisect import bisect_left, bisect_right
from math import factorial, ceil, floor


INF = float('inf')
def LI(): return list(map(int, sys.stdin.readline().split()))
def I(): return int(sys.stdin.readline())
def LIM(): return list(map(lambda x:int(x) - 1, sys.stdin.readline().split()))
def LS(): return sys.stdin.readline().split()
def S(): return sys.stdin.readline().strip()
def IR(n): return [I() for i in range(n)]
def LIR(n): return [LI() for i in range(n)]
def LIRM(n): return [LIM() for i in range(n)]
def SR(n): return [S() for i in range(n)]
def LSR(n): return [LS() for i in range(n)]
def SRL(n): return [list(S()) for i in range(n)]
def MSRL(n): return [[int(j) for j in list(S())] for i in range(n)]
mod = 1000000007


n = I()
ret = -INF
for i in range(2, n+1):
    print("? {0} {1}".format(1, i))
    sys.stdout.flush()
    if I() > ret:
        v = i


ret = -INF
for j in range(n+1):
    if v != j:
        print("? {0} {1}".format(v, j))
        sys.stdout.flush()
        if I() > ret:
            ret = I()
            w = j



print("! {0}".format(ret))

Submission Info

Submission Time
Task D - 高橋くんと木の直径
User ryuhei_py
Language PyPy3 (2.4.0)
Score 0
Code Size 1346 Byte
Status
Exec Time 197 ms
Memory 39744 KB

Judge Result

Set Name Score / Max Score Test Cases
Sample 0 / 0 subtask0_0.txt
Subtask1 0 / 20 subtask1_0.txt, subtask1_1.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_2.txt, subtask1_20.txt, subtask1_3.txt, subtask1_4.txt, subtask1_5.txt, subtask1_6.txt, subtask1_7.txt, subtask1_8.txt, subtask1_9.txt, subtask0_0.txt
All 0 / 80 subtask0_0.txt, subtask1_0.txt, subtask1_1.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_2.txt, subtask1_20.txt, subtask1_3.txt, subtask1_4.txt, subtask1_5.txt, subtask1_6.txt, subtask1_7.txt, subtask1_8.txt, subtask1_9.txt, subtask2_0.txt, subtask2_1.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt, subtask2_13.txt, subtask2_14.txt, subtask2_15.txt, subtask2_16.txt, subtask2_17.txt, subtask2_18.txt, subtask2_19.txt, subtask2_2.txt, subtask2_3.txt, subtask2_4.txt, subtask2_5.txt, subtask2_6.txt, subtask2_7.txt, subtask2_8.txt, subtask2_9.txt
Case Name Status Exec Time Memory
subtask0_0.txt 191 ms 39744 KB
subtask1_0.txt 192 ms 39488 KB
subtask1_1.txt 190 ms 39484 KB
subtask1_10.txt 186 ms 39488 KB
subtask1_11.txt 184 ms 39488 KB
subtask1_12.txt 186 ms 39488 KB
subtask1_13.txt 196 ms 39488 KB
subtask1_14.txt 191 ms 39492 KB
subtask1_15.txt 191 ms 39488 KB
subtask1_16.txt 186 ms 39488 KB
subtask1_17.txt 187 ms 39484 KB
subtask1_18.txt 191 ms 39488 KB
subtask1_19.txt 193 ms 39484 KB
subtask1_2.txt 188 ms 39488 KB
subtask1_20.txt 184 ms 39492 KB
subtask1_3.txt 194 ms 39488 KB
subtask1_4.txt 191 ms 39488 KB
subtask1_5.txt 188 ms 39492 KB
subtask1_6.txt 191 ms 39492 KB
subtask1_7.txt 190 ms 39484 KB
subtask1_8.txt 191 ms 39492 KB
subtask1_9.txt 188 ms 39484 KB
subtask2_0.txt 189 ms 39492 KB
subtask2_1.txt 190 ms 39484 KB
subtask2_10.txt 190 ms 39488 KB
subtask2_11.txt 192 ms 39488 KB
subtask2_12.txt 187 ms 39488 KB
subtask2_13.txt 189 ms 39488 KB
subtask2_14.txt 185 ms 39488 KB
subtask2_15.txt 188 ms 39488 KB
subtask2_16.txt 194 ms 39488 KB
subtask2_17.txt 197 ms 39488 KB
subtask2_18.txt 186 ms 39488 KB
subtask2_19.txt 192 ms 39360 KB
subtask2_2.txt 186 ms 39488 KB
subtask2_3.txt 197 ms 39488 KB
subtask2_4.txt 191 ms 39488 KB
subtask2_5.txt 190 ms 39488 KB
subtask2_6.txt 189 ms 39484 KB
subtask2_7.txt 190 ms 39488 KB
subtask2_8.txt 187 ms 39488 KB
subtask2_9.txt 188 ms 39488 KB