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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#795168 | #9818. Hash Collision | DarwinA66 | WA | 2ms | 4032kb | C++20 | 1.1kb | 2024-11-30 18:14:23 | 2024-11-30 18:14:23 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int ask(int a,int b)
{
printf("? %d %d\n",a,b);
fflush(stdout);
int res;
scanf("%d",&res);
return res;
}
void guess(int a,int b)
{
printf("! %d %d\n",a,b);
fflush(stdout);
}
int R(int n)
{
srand(time(0));
return rand()%n+1;
}
int base[2024];
int gs[2024];
map<int,int>fun;
int main()
{
int n,s;
int size;
scanf("%d",&n);
int bar=(int)(sqrt(n));
s=ask(n,1);
base[0]=s;
fun[s]=1;
for(int i=1;i<=bar;i++)
{
int x=ask(i,s);
if(x==s)
{
size=i;
int y=(size+(-s)%size)%size;
guess(s,base[y]);
return 0;
}
base[i]=x;
fun[x]=i+1;
}
for(int i=2;i<=bar+1&&((i-1)*bar<=n);i++)
{
int x=ask((i-1)*bar,base[bar]);
if(fun[x]!=0)
{
int bia=fun[x]-1;
size=i*bar-bia;
int y=(size+(-s)%size)%size;
int t=ask(y,s);
guess(s,t);
return 0;
}
}
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 3884kb
input:
6 2 3 5 2 5
output:
? 6 1 ? 1 2 ? 2 2 ? 2 5 ? 2 2 ! 2 5
result:
ok
Test #2:
score: 0
Accepted
time: 1ms
memory: 3976kb
input:
4 4 2 4
output:
? 4 1 ? 1 4 ? 2 4 ! 4 4
result:
ok
Test #3:
score: 0
Accepted
time: 1ms
memory: 4012kb
input:
1 1 1
output:
? 1 1 ? 1 1 ! 1 1
result:
ok
Test #4:
score: 0
Accepted
time: 1ms
memory: 4020kb
input:
2 1 1
output:
? 2 1 ? 1 1 ! 1 1
result:
ok
Test #5:
score: 0
Accepted
time: 0ms
memory: 3976kb
input:
2 1 1
output:
? 2 1 ? 1 1 ! 1 1
result:
ok
Test #6:
score: 0
Accepted
time: 0ms
memory: 3828kb
input:
2 1 2 1 2
output:
? 2 1 ? 1 1 ? 1 2 ? 1 1 ! 1 2
result:
ok
Test #7:
score: 0
Accepted
time: 1ms
memory: 3964kb
input:
2 2 2
output:
? 2 1 ? 1 2 ! 2 2
result:
ok
Test #8:
score: 0
Accepted
time: 0ms
memory: 4032kb
input:
100000 1 1
output:
? 100000 1 ? 1 1 ! 1 1
result:
ok
Test #9:
score: 0
Accepted
time: 1ms
memory: 3924kb
input:
100000 42 42
output:
? 100000 1 ? 1 42 ! 42 42
result:
ok
Test #10:
score: 0
Accepted
time: 2ms
memory: 3860kb
input:
100000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 1...
output:
? 100000 1 ? 1 1 ? 2 1 ? 3 1 ? 4 1 ? 5 1 ? 6 1 ? 7 1 ? 8 1 ? 9 1 ? 10 1 ? 11 1 ? 12 1 ? 13 1 ? 14 1 ? 15 1 ? 16 1 ? 17 1 ? 18 1 ? 19 1 ? 20 1 ? 21 1 ? 22 1 ? 23 1 ? 24 1 ? 25 1 ? 26 1 ? 27 1 ? 28 1 ? 29 1 ? 30 1 ? 31 1 ? 32 1 ? 33 1 ? 34 1 ? 35 1 ? 36 1 ? 37 1 ? 38 1 ? 39 1 ? 40 1 ? 41 1 ? 42 1 ? 43...
result:
ok
Test #11:
score: 0
Accepted
time: 0ms
memory: 4032kb
input:
100000 100000 100000
output:
? 100000 1 ? 1 100000 ! 100000 100000
result:
ok
Test #12:
score: 0
Accepted
time: 0ms
memory: 4020kb
input:
3 1 1
output:
? 3 1 ? 1 1 ! 1 1
result:
ok
Test #13:
score: 0
Accepted
time: 0ms
memory: 3876kb
input:
4 1 4 1
output:
? 4 1 ? 1 1 ? 2 1 ! 1 4
result:
ok
Test #14:
score: 0
Accepted
time: 0ms
memory: 3980kb
input:
5 3 4 3
output:
? 5 1 ? 1 3 ? 2 3 ! 3 4
result:
ok
Test #15:
score: 0
Accepted
time: 1ms
memory: 3872kb
input:
6 6 2 6
output:
? 6 1 ? 1 6 ? 2 6 ! 6 6
result:
ok
Test #16:
score: 0
Accepted
time: 1ms
memory: 4016kb
input:
7 3 3
output:
? 7 1 ? 1 3 ! 3 3
result:
ok
Test #17:
score: 0
Accepted
time: 0ms
memory: 3952kb
input:
8 2 4 1 6 4 8
output:
? 8 1 ? 1 2 ? 2 2 ? 2 1 ? 4 1 ? 3 2 ! 2 8
result:
ok
Test #18:
score: 0
Accepted
time: 0ms
memory: 3824kb
input:
9 8 8
output:
? 9 1 ? 1 8 ! 8 8
result:
ok
Test #19:
score: 0
Accepted
time: 1ms
memory: 4028kb
input:
10 6 9 1 3 1 1
output:
? 10 1 ? 1 6 ? 2 6 ? 3 6 ? 3 3 ? 2 6 ! 6 1
result:
ok
Test #20:
score: 0
Accepted
time: 1ms
memory: 3880kb
input:
11 9 9
output:
? 11 1 ? 1 9 ! 9 9
result:
ok
Test #21:
score: 0
Accepted
time: 0ms
memory: 3948kb
input:
12 10 2 10
output:
? 12 1 ? 1 10 ? 2 10 ! 10 10
result:
ok
Test #22:
score: -100
Wrong Answer
time: 0ms
memory: 3880kb
input:
13 5 9 4 10 9
output:
? 13 1 ? 1 5 ? 2 5 ? 3 5 ? 3 10 ? 0 5
result:
wrong answer Integer parameter [name=c] equals to 0, violates the range [1, 13]