NC52850. Simple Algebra
描述
输入描述
The input contains zero or more test cases and is terminated by end-of-file.
Each test case contains three integers a, b, c.
*
* The number of tests cases does not exceed.
输出描述
For each case, output "`Yes`" ifalways holds. Otherwise, output "`No`".
示例1
输入:
1 -2 1 1 -2 0 0 0 0
输出:
Yes No Yes
Python3(3.5.2) 解法, 执行用时: 82ms, 内存消耗: 3556K, 提交时间: 2019-10-05 12:47:54
while True:
try:
a,b,c = map(int, input().split())
if a >= 0 and c >= 0 and b*b <= 4*a*c:
print("Yes")
else:
print("No")
except EOFError:
break
C++14(g++5.4) 解法, 执行用时: 22ms, 内存消耗: 484K, 提交时间: 2019-10-05 17:21:26
#include<bits/stdc++.h>
using namespace std;
int main()
{
int a,b,c;
while(cin>>a>>b>>c)
{
if(b*b-4*a*c<=0&&a>=0&&c>=0)puts("Yes");
else puts("No");
}
return 0;
}
C++11(clang++ 3.9) 解法, 执行用时: 7ms, 内存消耗: 484K, 提交时间: 2020-02-25 21:29:47
#include<cstdio>
int main()
{
int a,b,c;
while(scanf("%d%d%d",&a,&b,&c)!=EOF)
{
if(a>=0&&c>=0&&a*c*4-b*b>=0) printf("Yes\n");
else printf("No\n");
}
}