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
#206393	#1745. 一元三次方程求解	Allen123456hello	100	1ms	1244kb	C++11	370b	2024-07-22 17:49:12	2024-07-22 20:01:49

answer

#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
long double a,b,c,d;
long double f(long double x){
    return a*x*x*x+b*x*x+c*x+d;
}
int main(){
    scanf("%Lf%Lf%Lf%Lf",&a,&b,&c,&d);
    int cnt=0;
    for (long double j=-100;j<=100;j+=0.01){
        if (abs(f(j))<1.0e-5L){printf("%.2Lf%c",j," \n"[(++cnt)==3]);}
    }
    return 0;
}

源文件, 语言: C++11

详细

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Test #1:

score: 25

Accepted

time: 0ms

memory: 1232kb

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: 1240kb

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: 1236kb

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: 1244kb

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'