Submission #348246


Source Code Expand

#include <stdio.h>

int N,D[55];

int main()
{
	scanf ("%d",&N);
	int x=0,s=1;
	for (int i=2;i<=N;i++){
		printf ("? %d %d\n",1,i);
		fflush(stdout);
		scanf ("%d",&D[i]);
		if (x < D[i])
			x = D[i], s = i;
	}

	int y = 0;
	for (int i=1;i<=N;i++){
		if (i != s){
			printf ("? %d %d\n",s,i);
			fflush(stdout);
			int d;
			scanf ("%d",&d);
			if (y < d)
				y = d;
		}
	}

	printf ("! %d\n",y);
	fflush(stdout);

	return 0;
}

Submission Info

Submission Time
Task D - 高橋くんと木の直径
User august14
Language C++ (G++ 4.6.4)
Score 100
Code Size 459 Byte
Status AC
Exec Time 54 ms
Memory 2088 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:7:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
./Main.cpp:12:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
./Main.cpp:23:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result

Set Name Sample Subtask1 All
Score / Max Score 0 / 0 20 / 20 80 / 80
Status
AC × 1
AC × 22
AC × 42
Set Name Test Cases
Sample subtask0_0.txt
Subtask1 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 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 AC 44 ms 2020 KB
subtask1_0.txt AC 48 ms 1992 KB
subtask1_1.txt AC 46 ms 2008 KB
subtask1_10.txt AC 45 ms 2040 KB
subtask1_11.txt AC 47 ms 2020 KB
subtask1_12.txt AC 49 ms 2004 KB
subtask1_13.txt AC 54 ms 2004 KB
subtask1_14.txt AC 50 ms 2016 KB
subtask1_15.txt AC 48 ms 2032 KB
subtask1_16.txt AC 46 ms 2016 KB
subtask1_17.txt AC 46 ms 2012 KB
subtask1_18.txt AC 46 ms 2012 KB
subtask1_19.txt AC 47 ms 2088 KB
subtask1_2.txt AC 47 ms 2008 KB
subtask1_20.txt AC 43 ms 2004 KB
subtask1_3.txt AC 46 ms 2008 KB
subtask1_4.txt AC 44 ms 2012 KB
subtask1_5.txt AC 46 ms 2008 KB
subtask1_6.txt AC 49 ms 2004 KB
subtask1_7.txt AC 46 ms 2044 KB
subtask1_8.txt AC 45 ms 2000 KB
subtask1_9.txt AC 47 ms 2004 KB
subtask2_0.txt AC 46 ms 2004 KB
subtask2_1.txt AC 48 ms 2000 KB
subtask2_10.txt AC 45 ms 2000 KB
subtask2_11.txt AC 48 ms 2008 KB
subtask2_12.txt AC 45 ms 2008 KB
subtask2_13.txt AC 46 ms 2024 KB
subtask2_14.txt AC 45 ms 2004 KB
subtask2_15.txt AC 47 ms 2012 KB
subtask2_16.txt AC 45 ms 1996 KB
subtask2_17.txt AC 44 ms 2012 KB
subtask2_18.txt AC 45 ms 2004 KB
subtask2_19.txt AC 46 ms 2004 KB
subtask2_2.txt AC 47 ms 2024 KB
subtask2_3.txt AC 46 ms 2016 KB
subtask2_4.txt AC 47 ms 2008 KB
subtask2_5.txt AC 45 ms 2016 KB
subtask2_6.txt AC 45 ms 2012 KB
subtask2_7.txt AC 48 ms 2060 KB
subtask2_8.txt AC 47 ms 2020 KB
subtask2_9.txt AC 46 ms 2012 KB