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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 |
|---|---|---|---|---|---|---|---|---|---|
| #435174 | #8795. Mysterious Sequence | Forever_Young# | WA | 0ms | 4016kb | C++17 | 724b | 2024-06-08 19:11:43 | 2024-06-08 19:11:43 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
int main() {
typedef long double D;
D a, b;
int n;
D x1, xn;
cin >> a >> b >> n >> x1 >> xn;
D lambda[2] = {(a + sqrt(a + 4 * b)) / 2, (a - sqrt(a + 4 * b)) / 2};
D ln[2] = {1, 1};
for(int i = 0; i < n; i++) {
for(int d = 0; d < 2; d++) {
ln[d] *= lambda[d];
}
}
D c = (x1 * ln[1] - xn * lambda[1]) / (lambda[0] * ln[1] - lambda[1] * ln[0]);
D d = (x1 - c * lambda[0]) / lambda[1];
ln[0] = lambda[0];
ln[1] = lambda[1];
for(int i = 1; i <= n; i++) {
printf("%.12f\n", double(c * ln[0] + d * ln[1]));
ln[0] *= lambda[0];
ln[1] *= lambda[1];
}
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3964kb
input:
1.0 1.0 10 1 10
output:
1.000000000000 -0.323529411765 0.676470588235 0.352941176471 1.029411764706 1.382352941176 2.411764705882 3.794117647059 6.205882352941 10.000000000000
result:
ok 10 numbers
Test #2:
score: 0
Accepted
time: 0ms
memory: 3956kb
input:
1 1 2 1 100
output:
1.000000000000 100.000000000000
result:
ok 2 numbers
Test #3:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
1 1 5 50 100
output:
50.000000000000 -0.000000000000 50.000000000000 50.000000000000 100.000000000000
result:
ok 5 numbers
Test #4:
score: -100
Wrong Answer
time: 0ms
memory: 4016kb
input:
0.25 0.25 10 1 1
output:
1.000000000000 33.132776365807 8.580069091452 11.981310256462 5.542535575640 4.942585376297 2.881086593092 2.187601681861 1.402223002790 1.000000000000
result:
wrong answer 2nd numbers differ - expected: '55.8755365', found: '33.1327764', error = '0.4070254'