Submission #7889393
Source Code Expand
#include<bits/stdc++.h> using namespace std; inline int read() { int number_read=0,if_ok_read=1; char ch_read=getchar(); while(ch_read<'0'||ch_read>'9') { if(ch_read=='-') if_ok_read=-1; ch_read=getchar(); } while(ch_read>='0'&&ch_read<='9') { number_read=number_read*10+ch_read-'0'; ch_read=getchar(); } return number_read*if_ok_read; } inline void write(int x_write) { if(x_write<0) { putchar('-'); x_write=-x_write; } if(x_write>9) write(x_write/10); putchar(x_write%10+'0'); return ; } int main() { //freopen(".in","r",stdin); //freopen(".out","w",stdout); int a,b,s,n=read(); for(int i=2;i<=n;i++) { printf("? 1 %d\n",i); fflush(stdout); scanf("%d",&s); if(a<s) { a=s; b=i; } } for(int i=1;i<=n;i++) if(i!=b) { printf("? %d %d\n",b,i); fflush(stdout); scanf("%d",&s); if(a<s) a=s; } printf("! %d\n",a); return 0; }
Submission Info
Submission Time | |
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Task | D - 高橋くんと木の直径 |
User | luogu_bot5 |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 1054 Byte |
Status | AC |
Exec Time | 7 ms |
Memory | 724 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:41:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&s); ^ ./Main.cpp:53:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&s); ^
Judge Result
Set Name | Sample | Subtask1 | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 20 / 20 | 80 / 80 | ||||||
Status |
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Set Name | Test Cases |
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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 | 3 ms | 720 KB |
subtask1_0.txt | AC | 7 ms | 720 KB |
subtask1_1.txt | AC | 7 ms | 720 KB |
subtask1_10.txt | AC | 7 ms | 720 KB |
subtask1_11.txt | AC | 7 ms | 720 KB |
subtask1_12.txt | AC | 7 ms | 720 KB |
subtask1_13.txt | AC | 7 ms | 720 KB |
subtask1_14.txt | AC | 7 ms | 716 KB |
subtask1_15.txt | AC | 7 ms | 720 KB |
subtask1_16.txt | AC | 7 ms | 720 KB |
subtask1_17.txt | AC | 7 ms | 724 KB |
subtask1_18.txt | AC | 7 ms | 720 KB |
subtask1_19.txt | AC | 6 ms | 716 KB |
subtask1_2.txt | AC | 7 ms | 720 KB |
subtask1_20.txt | AC | 3 ms | 716 KB |
subtask1_3.txt | AC | 7 ms | 720 KB |
subtask1_4.txt | AC | 7 ms | 716 KB |
subtask1_5.txt | AC | 7 ms | 724 KB |
subtask1_6.txt | AC | 7 ms | 724 KB |
subtask1_7.txt | AC | 7 ms | 720 KB |
subtask1_8.txt | AC | 7 ms | 720 KB |
subtask1_9.txt | AC | 7 ms | 720 KB |
subtask2_0.txt | AC | 7 ms | 720 KB |
subtask2_1.txt | AC | 6 ms | 720 KB |
subtask2_10.txt | AC | 7 ms | 720 KB |
subtask2_11.txt | AC | 7 ms | 720 KB |
subtask2_12.txt | AC | 7 ms | 720 KB |
subtask2_13.txt | AC | 7 ms | 720 KB |
subtask2_14.txt | AC | 7 ms | 716 KB |
subtask2_15.txt | AC | 7 ms | 724 KB |
subtask2_16.txt | AC | 7 ms | 720 KB |
subtask2_17.txt | AC | 7 ms | 720 KB |
subtask2_18.txt | AC | 7 ms | 720 KB |
subtask2_19.txt | AC | 7 ms | 724 KB |
subtask2_2.txt | AC | 7 ms | 720 KB |
subtask2_3.txt | AC | 7 ms | 720 KB |
subtask2_4.txt | AC | 7 ms | 724 KB |
subtask2_5.txt | AC | 7 ms | 720 KB |
subtask2_6.txt | AC | 7 ms | 724 KB |
subtask2_7.txt | AC | 7 ms | 720 KB |
subtask2_8.txt | AC | 7 ms | 716 KB |
subtask2_9.txt | AC | 7 ms | 716 KB |