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
#206400	#1745. 一元三次方程求解	wyz_	100	1ms	1244kb	C++11	324b	2024-07-22 17:56:56	2024-07-22 20:03:13

answer

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

int cnt;
double a,b,c,d;

int main(){
	scanf("%lf %lf %lf %lf",&a,&b,&c,&d);
	
	for(double i = -100; i <= 100; i += 0.01){
		if(abs(a*i*i*i + b*i*i + c*i + d) <= 1e-2){
			printf("%.2lf ",i);
			if(++cnt >= 3)
				return 0;
			i += 0.99;
		}
	}
	
	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: 1236kb

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: 1244kb

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: 1ms

memory: 1244kb

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: 1240kb

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 '