QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #660506 | #7781. Sheep Eat Wolves | oumashu | WA | 0ms | 3660kb | C++17 | 1.5kb | 2024-10-20 11:43:34 | 2024-10-20 11:43:35 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int main(){
int x,y,p,q,m=0,n=0,sum=0;
cin>>x>>y>>p>>q;
if(p!=1){
while(1){
int ans=y-x-q;
//cout<<ans<<"\n";
if(p>=x){ sum++; break; }
if(p<ans){ cout<<-1; return 0; }
if(ans>0){
y-=ans;
x-=(p-ans)/2;
y-=(p-ans)/2;
m+=(p-ans)/2;
n+=ans+(p-ans)/2;
sum++;
}
else if(ans<0){
x+=ans;
x-=(p+ans)/2;
y-=(p+ans)/2;
m+=(p+ans)/2-ans;
n+=(p+ans)/2;
sum++;
}
else if(ans==0){
x-=p/2;
y-=p/2;
m+=p/2;
n+=p/2;
sum++;
}
//cout<<n<<"\n";
int ans2=n-m-q;
if(p<ans2){
cout<<-1;
return 0;
}
if(ans2>0&&m!=0){
n-=ans2;
y+=ans2;
}
sum++;
//cout<<x<<" "<<y<<" "<<m<<" "<<n<<"\n";
if(x<=0)break;
}
}
else {
int ans=y-x-q;
if(ans>p){
cout<<"-1";
return 0;
}
sum+=2*(x+q-y);
x=y-q;
sum+=(x-1)*4+1;
}
cout<<sum;
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3540kb
input:
4 4 3 1
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
3 5 2 0
output:
5
result:
ok 1 number(s): "5"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3484kb
input:
2 5 1 1
output:
-1
result:
ok 1 number(s): "-1"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3612kb
input:
1 1 1 0
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 0ms
memory: 3660kb
input:
3 3 1 1
output:
7
result:
ok 1 number(s): "7"
Test #6:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
3 3 2 1
output:
3
result:
ok 1 number(s): "3"
Test #7:
score: -100
Wrong Answer
time: 0ms
memory: 3644kb
input:
10 9 1 10
output:
15
result:
wrong answer 1st numbers differ - expected: '19', found: '15'