QOJ.ac
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 |
|---|---|---|---|---|---|---|---|---|---|
| #755129 | #7781. Sheep Eat Wolves | bexiaohe | WA | 1ms | 3720kb | C++14 | 2.4kb | 2024-11-16 16:32:15 | 2024-11-16 16:32:15 |
Judging History
answer
#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
const int N = 2e5 + 5;
int n, m, k, x, y, T = 1, p, q;
int f_la, f_lb, f_ra, f_rb;
#define zy if(l_a<=0){break;}
void solve()
{
cin >> x >> y >> p >> q;
int l_a = x, l_b = y, r_a = 0, r_b = 0;
f_la = l_a, f_lb = l_b, f_ra = r_a, f_rb = r_b;
int ans = 0;
bool judge = 1;
while (l_a > 0) {
if (l_a <= p && judge == 1) {
++ans;
cout << ans << endl;
return;
}
++ans;
if (judge == 1) {
int tt = l_a - l_b + q;
if (tt == 0) {
int tmp = p;
/*if (tmp < 2) {
cout << "-1" << endl;
return;
}*/
int kk = tmp / 2;
kk = min({ kk,l_a,l_b });
tmp -= kk * 2;
l_a -= kk, l_b -= kk, r_a += kk, r_b += kk; zy
if (l_b == 0 && tmp != 0) {
kk = min(tmp, l_a);
r_a += kk;
l_a -= kk;
zy
}
else if (tmp != 0) {
++r_b;
--l_b;
--tmp;
}
}
else if (tt < 0) {
int tmp = p;
int kk = min({ tmp,abs(tt) });
tt += kk;
tmp -= kk;
l_b -= kk, r_b += kk;
if (tt < 0) {
cout << "-1" << endl;
return;
}
kk = tmp / 2;
kk = min({ kk,l_a,l_b });
tmp -= kk * 2;
l_a -= kk, l_b -= kk, r_a += kk, r_b += kk;
zy
if (l_b == 0 && tmp != 0) {
kk = min(tmp, l_a);
r_a += kk;
l_a -= kk;
zy
}
}
else if (tt > 0) {
int tmp = p;
int kk = min({ tmp,tt,l_a });
l_a -= kk, r_a += kk;
tmp -= kk;
tt -= kk; zy
kk = tmp / 2;
kk = min({ kk,l_a,l_b });
tmp -= kk * 2;
l_a -= kk, l_b -= kk, r_a += kk, r_b += kk; zy
if (l_b == 0 && tmp != 0) {
kk = min(tmp, l_a);
r_a += kk;
l_a -= kk;
zy
}
}
if (f_la == l_a && f_lb == l_b && f_ra == r_a && f_rb == r_b) {
cout << "-1" << endl;
return;
}
else {
f_la = l_a, f_lb = l_b, f_ra = r_a, f_rb = r_b;
}
}
else if (judge == 0) {
if (r_a != 0) {
int tt = r_a - r_b + q;
if (tt < 0) {
int tmp = p;
int kk = min({ r_b,tmp,abs(tt) });
tt += kk, r_b -= kk, l_b += kk;
if (tt < 0) {
cout << "-1" << endl;
return;
}
}
}
}
if (judge == 1)judge = 0;
else judge = 1;
}
cout << ans << endl;
}
int main()
{
ios::sync_with_stdio(false), cin.tie(0);
//cin >> T;
while (T--) solve();
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3704kb
input:
4 4 3 1
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3520kb
input:
3 5 2 0
output:
5
result:
ok 1 number(s): "5"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3600kb
input:
2 5 1 1
output:
-1
result:
ok 1 number(s): "-1"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3592kb
input:
1 1 1 0
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 0ms
memory: 3712kb
input:
3 3 1 1
output:
7
result:
ok 1 number(s): "7"
Test #6:
score: 0
Accepted
time: 0ms
memory: 3576kb
input:
3 3 2 1
output:
3
result:
ok 1 number(s): "3"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3588kb
input:
10 9 1 10
output:
19
result:
ok 1 number(s): "19"
Test #8:
score: 0
Accepted
time: 0ms
memory: 3648kb
input:
15 20 2 5
output:
27
result:
ok 1 number(s): "27"
Test #9:
score: 0
Accepted
time: 0ms
memory: 3712kb
input:
18 40 16 7
output:
5
result:
ok 1 number(s): "5"
Test #10:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
60 60 8 1
output:
27
result:
ok 1 number(s): "27"
Test #11:
score: 0
Accepted
time: 0ms
memory: 3644kb
input:
60 60 8 4
output:
27
result:
ok 1 number(s): "27"
Test #12:
score: 0
Accepted
time: 0ms
memory: 3612kb
input:
60 60 8 8
output:
25
result:
ok 1 number(s): "25"
Test #13:
score: 0
Accepted
time: 0ms
memory: 3664kb
input:
60 60 16 1
output:
13
result:
ok 1 number(s): "13"
Test #14:
score: 0
Accepted
time: 0ms
memory: 3620kb
input:
60 60 16 8
output:
11
result:
ok 1 number(s): "11"
Test #15:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
60 60 16 16
output:
11
result:
ok 1 number(s): "11"
Test #16:
score: 0
Accepted
time: 1ms
memory: 3676kb
input:
60 60 16 24
output:
9
result:
ok 1 number(s): "9"
Test #17:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
75 15 1 1
output:
175
result:
ok 1 number(s): "175"
Test #18:
score: 0
Accepted
time: 0ms
memory: 3600kb
input:
50 100 1 0
output:
-1
result:
ok 1 number(s): "-1"
Test #19:
score: 0
Accepted
time: 0ms
memory: 3720kb
input:
100 100 10 10
output:
35
result:
ok 1 number(s): "35"
Test #20:
score: 0
Accepted
time: 0ms
memory: 3704kb
input:
100 100 10 1
output:
37
result:
ok 1 number(s): "37"
Test #21:
score: 0
Accepted
time: 0ms
memory: 3656kb
input:
100 100 10 20
output:
33
result:
ok 1 number(s): "33"
Test #22:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
100 100 10 30
output:
31
result:
ok 1 number(s): "31"
Test #23:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
100 100 10 80
output:
21
result:
ok 1 number(s): "21"
Test #24:
score: 0
Accepted
time: 0ms
memory: 3668kb
input:
100 100 1 100
output:
199
result:
ok 1 number(s): "199"
Test #25:
score: -100
Wrong Answer
time: 0ms
memory: 3708kb
input:
100 100 5 0
output:
97
result:
wrong answer 1st numbers differ - expected: '95', found: '97'