NOI.AC

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
#206422	#1745. 一元三次方程求解	cql	100	0ms	1288kb	C++11	359b	2024-07-22 18:27:55	2024-07-22 20:07:11

answer

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

signed main() {
	double a, b, c, d; cin >> a >> b >> c >> d;
	for (int j = -10000, cnt = 0; j <= 10000 && cnt < 3; j++) {
		double i = (double)j / 100.0;
		if (abs(a * i * i * i + b * i * i + c * i + d) <= 0.001) {
			printf("%.2f ", i);
			j += 99; cnt++;
		}
	}
	return 0;
}

源文件, 语言: C++11

详细

小提示：点击横条可展开更详细的信息

Test #1:

score: 25

Accepted

time: 0ms

memory: 1280kb

input:

1 -2 -1 2

output:

-1.00 1.00 2.00

result:

ok single line: '-1.00 1.00 2.00 '

Test #2:

score: 25

Accepted

time: 0ms

memory: 1288kb

input:

1 -4.65 2.25 1.4

output:

-0.35 1.00 4.00

result:

ok single line: '-0.35 1.00 4.00 '

Test #3:

score: 25

Accepted

time: 0ms

memory: 1284kb

input:

1 10 -1 -10

output:

-10.00 -1.00 1.00

result:

ok single line: '-10.00 -1.00 1.00 '

Test #4:

score: 25

Accepted

time: 0ms

memory: 1284kb

input:

1 -1.8 -8.59 -0.84

output:

-2.10 -0.10 4.00

result:

ok single line: '-2.10 -0.10 4.00 '