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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
#707167#7781. Sheep Eat Wolvesred_jiuWA 1ms3704kbC++232.3kb2024-11-03 14:57:042024-11-03 14:57:05

Judging History

你现在查看的是最新测评结果

  • [2024-11-03 14:57:05]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3704kb
  • [2024-11-03 14:57:04]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

void solve()
{
    int x, y, p, q;
    cin >> x >> y >> p >> q;
    if(x <= p){
        cout<<1<<"\n";
        return ;
    }
    if(y - x - p > q){
        cout<<-1<<"\n";
        return ;
    }
    int lx , ly , rx , ry;
    lx = x , ly = y;
    rx = 0 , ry = 0;
    int opt = 0;
    int ans = 0;

    while(lx){
        // 回
        if(opt & 1){
            int K2 = 0;
            if(rx && ry - rx > q){
                K2 = min(ry - rx - q,p);
            }
            ry -= K2; ly += K2;
        }
        else{
            if(lx - ly >= p){
                lx -= p; rx += p;
            }
            else{
                int K1 = min(( p + q - ly + lx) / 2,p);
                if(lx <= p) K1 = lx;
                int K2 = p - K1;
                rx += K1; ry += K2;
                lx -= K1; ly -= K2;
            }
        }

        opt ^= 1;
        ans ++ ;
        if(ans == 10000) {
            cout<<-1<<"\n";
            return ;
        }
    }
    if(ans > 4){
        lx = x , ly = y , rx = 0 , ry = 0;
        if(lx >= p && ly >= p){
            lx -= p; ly -= p;
            rx += p; ry += p;
        }
        int tmp = 4;
        opt = 0;
        while(lx){
            // 回
            if(opt & 1){
                int K2 = 0;
                if(rx && ry - rx > q){
                    K2 = min(ry - rx - q,p);
                }
                ry -= K2; ly += K2;
            }
            else{
                if(lx - ly >= p){
                    lx -= p; rx += p;
                }
                else{
                    int K1 = min(( p + q - ly + lx) / 2,p);
                    if(lx <= p) K1 = lx;
                    int K2 = p - K1;
                    rx += K1; ry += K2;
                    lx -= K1; ly -= K2;
                }
            }

            opt ^= 1;
            tmp ++ ;
            if(tmp == 10000) {
                cout<<-1<<"\n";
                return ;
            }
        }
        ans  =min(ans , tmp);
    }
    cout << ans << "\n";
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0),cout.tie(0);
    int tt = 1;
    //cin >> tt;
    while(tt--)
        solve();
    return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3556kb

input:

4 4 3 1

output:

3

result:

ok 1 number(s): "3"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

3 5 2 0

output:

5

result:

ok 1 number(s): "5"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

2 5 1 1

output:

-1

result:

ok 1 number(s): "-1"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

1 1 1 0

output:

1

result:

ok 1 number(s): "1"

Test #5:

score: 0
Accepted
time: 0ms
memory: 3580kb

input:

3 3 1 1

output:

7

result:

ok 1 number(s): "7"

Test #6:

score: 0
Accepted
time: 0ms
memory: 3552kb

input:

3 3 2 1

output:

3

result:

ok 1 number(s): "3"

Test #7:

score: 0
Accepted
time: 0ms
memory: 3704kb

input:

10 9 1 10

output:

19

result:

ok 1 number(s): "19"

Test #8:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

15 20 2 5

output:

27

result:

ok 1 number(s): "27"

Test #9:

score: 0
Accepted
time: 0ms
memory: 3648kb

input:

18 40 16 7

output:

5

result:

ok 1 number(s): "5"

Test #10:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

60 60 8 1

output:

27

result:

ok 1 number(s): "27"

Test #11:

score: 0
Accepted
time: 0ms
memory: 3704kb

input:

60 60 8 4

output:

27

result:

ok 1 number(s): "27"

Test #12:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

60 60 8 8

output:

25

result:

ok 1 number(s): "25"

Test #13:

score: 0
Accepted
time: 0ms
memory: 3704kb

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: 3624kb

input:

60 60 16 16

output:

11

result:

ok 1 number(s): "11"

Test #16:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

60 60 16 24

output:

9

result:

ok 1 number(s): "9"

Test #17:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

75 15 1 1

output:

175

result:

ok 1 number(s): "175"

Test #18:

score: 0
Accepted
time: 0ms
memory: 3652kb

input:

50 100 1 0

output:

-1

result:

ok 1 number(s): "-1"

Test #19:

score: 0
Accepted
time: 0ms
memory: 3580kb

input:

100 100 10 10

output:

35

result:

ok 1 number(s): "35"

Test #20:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

100 100 10 1

output:

37

result:

ok 1 number(s): "37"

Test #21:

score: 0
Accepted
time: 0ms
memory: 3576kb

input:

100 100 10 20

output:

33

result:

ok 1 number(s): "33"

Test #22:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

100 100 10 30

output:

31

result:

ok 1 number(s): "31"

Test #23:

score: 0
Accepted
time: 0ms
memory: 3612kb

input:

100 100 10 80

output:

21

result:

ok 1 number(s): "21"

Test #24:

score: 0
Accepted
time: 0ms
memory: 3704kb

input:

100 100 1 100

output:

199

result:

ok 1 number(s): "199"

Test #25:

score: 0
Accepted
time: 0ms
memory: 3576kb

input:

100 100 5 0

output:

95

result:

ok 1 number(s): "95"

Test #26:

score: 0
Accepted
time: 0ms
memory: 3608kb

input:

100 100 25 3

output:

13

result:

ok 1 number(s): "13"

Test #27:

score: 0
Accepted
time: 0ms
memory: 3580kb

input:

100 100 30 4

output:

11

result:

ok 1 number(s): "11"

Test #28:

score: 0
Accepted
time: 0ms
memory: 3644kb

input:

95 100 3 3

output:

125

result:

ok 1 number(s): "125"

Test #29:

score: 0
Accepted
time: 0ms
memory: 3624kb

input:

98 99 50 6

output:

5

result:

ok 1 number(s): "5"

Test #30:

score: 0
Accepted
time: 0ms
memory: 3552kb

input:

100 100 45 4

output:

7

result:

ok 1 number(s): "7"

Test #31:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

100 100 40 39

output:

7

result:

ok 1 number(s): "7"

Test #32:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

100 100 45 19

output:

7

result:

ok 1 number(s): "7"

Test #33:

score: 0
Accepted
time: 0ms
memory: 3576kb

input:

100 100 49 99

output:

5

result:

ok 1 number(s): "5"

Test #34:

score: 0
Accepted
time: 0ms
memory: 3644kb

input:

100 100 49 100

output:

5

result:

ok 1 number(s): "5"

Test #35:

score: 0
Accepted
time: 0ms
memory: 3580kb

input:

100 100 49 98

output:

5

result:

ok 1 number(s): "5"

Test #36:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

100 100 49 97

output:

5

result:

ok 1 number(s): "5"

Test #37:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

100 100 49 96

output:

5

result:

ok 1 number(s): "5"

Test #38:

score: 0
Accepted
time: 0ms
memory: 3612kb

input:

100 100 49 95

output:

5

result:

ok 1 number(s): "5"

Test #39:

score: 0
Accepted
time: 0ms
memory: 3552kb

input:

100 100 100 0

output:

1

result:

ok 1 number(s): "1"

Test #40:

score: 0
Accepted
time: 0ms
memory: 3552kb

input:

1 100 1 0

output:

1

result:

ok 1 number(s): "1"

Test #41:

score: 0
Accepted
time: 0ms
memory: 3616kb

input:

90 100 5 5

output:

87

result:

ok 1 number(s): "87"

Test #42:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

100 1 1 0

output:

199

result:

ok 1 number(s): "199"

Test #43:

score: 0
Accepted
time: 1ms
memory: 3612kb

input:

94 61 22 35

output:

9

result:

ok 1 number(s): "9"

Test #44:

score: -100
Wrong Answer
time: 0ms
memory: 3576kb

input:

61 92 36 6

output:

5

result:

wrong answer 1st numbers differ - expected: '7', found: '5'