题目

标准输出用的程序是这样的：

#include<bits/stdc++.h>
using namespace std;
long long a,x,power=1;
int main(){
	cin>>a;
	x=a;
	while(x%2==0){
		power*=2;
		x/=2;
	}
	cout<<a<<' '<<x*x/2*power<<' '<<(x*x/2+1)*power;
} 

checker是这样的

#include "testlib.h"

int main(int argc,char *argv[]){
	registerTestlibCmd(argc, argv);
	long long cnt=-1,pans[3]={0,0,0},jans[3]={0,0,0};
	bool p=0;
	while(!ans.eof()){
		pans[++cnt]=ouf.readLong();
		jans[cnt]=ans.readLong();
		ouf.readSpace();
		ans.readSpace();
		if(pans[cnt]<=2) quitf(_wa, "The answer is wrong.");
		if(pans[cnt]==jans[0]) p=1;
	}
	if(p==0) quitf(_wa, "The answer is wrong.");
	if((pans[0]*pans[0]==pans[1]*pans[1]+pans[2]*pans[2]||pans[1]*pans[1]==pans[0]*pans[0]+pans[2]*pans[2]||pans[2]*pans[2]==pans[0]*pans[0]+pans[1]*pans[1])&&pans[0]+pans[1]>pans[2]&&pans[0]+pans[2]>pans[1]&&pans[1]+pans[2]>pans[0]) quitf(_wa, "The answer is wrong.");
	else quitf(_ok, "The answer is correct.");
}

不知道为什么这份代码会WA

#include<bits/stdc++.h>
using namespace std;
long long a,x,power=1;
int main(){
	cin>>a;
	x=a;
	while(x%2==0){
		power*=2;
		x/=2;
	}
	cout<<x*x/2*power<<' '<<a<<' '<<(x*x/2+1)*power;
}