怎样把一下的C语言程序改成java程序？
修改成Java后的代码：
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public class Demo {
public static int gcd(int a, int b, int c) {
int min, i;
if(a b) {
if(b c) {
min = c;
} else {
min = b;
}
} else {
if(a c) {
min = c;
} else {
min = a;
}
}
if(b c) {
if(c a) {
min = a;
} else {
min = c;
}
} else {
if(b a) {
min = a;
} else {
min = b;
}
}
if(a c) {
if(c b) {
min = b;
} else {
min = c;
}
} else {
if(a b) {
min = b;
} else {
min = a;
}
}
for(i=min; i=1; i--) {
if(a%i==0 b%i==0 c%i==0) {
break;
}
}
return i;
}
public static void main(String[] args) {
int a = 1, b = 0, c = 0, i, k = 0, j = 0, m = 0, n = 0, z, y;
while(a 9) {
b = 1;
while(b 9) {
c = 1;
while(c 9) {
if(gcd(a,b,c) == 1) {
System.out.println(a + ";" + b + ";" + c);
k++;
z = b*b - 4*a*c;
if(z == 0) {
j++;
} else if(z 0) {
m++;
for (y=1; yz/2; y++) {
if (y*y==z) {
System.out.println("解答是有理数。");
}
}
} else {
n++;
}
}
c++;
}
b++;
}
a++;
}
System.out.println("N = " + k);
System.out.println("N2 = " + j);
System.out.println("N3 = " + m);
System.out.println("N4 = " + n);
i = gcd(a, b, c);
}
}
把C语言代码转成Java代码
package dis;
import java.io.*;
import java.math.*;
public class dis
{
public static void main(String [] s) throws Exception
{
Float a,b,c;
double x2;
double x1;
System.out.println("请输入a, b, c的值");
BufferedReader bReader=new BufferedReader(new InputStreamReader(System.in));
a=Float.parseFloat(bReader.readLine());
b=Float.parseFloat(bReader.readLine());
c=Float.parseFloat(bReader.readLine());
if (b*b - 4*a*c = 0)
System.out.println("输入的系数不对，b2-4ac不大于0！程序退出！");
else
{
x1 = (-b + Math.sqrt(b*b - 4*a*c))/2*a;
x2 = (-b - Math.sqrt(b*b - 4*a*c))/2*a;
System.out.println("x1 = "+ x1);
System.out.println("x2 = "+x2);
}
return;
}
}
把下面C语言代码改成java代码
import java.util.Arrays;
import java.util.Scanner;
public class A {
static final int maxn=100000+5;
static long[] a=new long[maxn],t=new long[maxn];
static long ans=0;
static void mymerge(int x,int m,int y) {
int tx=x,tm=m+1;
int k=0;
while(tx=m tm=y) {
if(a[tx]=a[tm])
t[k++]=a[tx++];
else {
ans+=m-tx+1;
a[k++]=a[tm++];
}
}
while(tx=m) t[k++]=a[tx++];
while(tm=y) t[k++]=a[tm++];
for(int i=0;ik;i++)
a[x++]=t[i];
}
static void mergesort(int x,int y) {
if(x==y)return ;
int mid=(x+y)/2;
int xx=x,yy=y;
mergesort(xx,mid);
mergesort(mid+1,yy);
mymerge(xx,mid,yy);
//System.out.println(xx+" "+mid+" "+yy);
}
public static void main(String[] arg) {
int n,k;
Scanner input=new Scanner(System.in);
while(input.hasNext()) {
n=input.nextInt();
k=input.nextInt();
Arrays.fill(a, 0);
Arrays.fill(t, 0);
for(int i=0;in;i++) {
a[i]=input.nextLong();
}
ans=0;
mergesort(0, n-1);
if(kans)
System.out.println("0");
else
System.out.println((ans-k)+"");
}
}
}
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