Submission #3787230

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Source Code Expand

#include<iostream>
using namespace std;
int a_dd(int a){return a*(a+1)/2;}
int r,g,b;
int main(){
	int ans=0,bjl,bjr;
	cin>>r>>g>>b;
	if(g<200){
		int k=(g%2==0)?(g/2-1):((g-1)/2);
		ans+=(a_dd(k)+a_dd(g-k-1));
		bjl=99-k;bjr=99-g+k;
		k=(r%2==0)?(r/2-1):((r-1)/2);
		if(k<=bjl)
			ans+=(a_dd(k)+a_dd(r-k-1));
		else
			ans+=(a_dd(bjl)+a_dd(r-bjl-1));
		k=(b%2==0)?(b/2-1):((b-1)/2);
		if(k<=bjr)
			ans+=(a_dd(k)+a_dd(b-k-1));
		else
			ans+=(a_dd(bjr)+a_dd(b-bjr-1));
	}else{
		int k=(g%2==0)?(g/2-1):((g-1)/2);
		ans+=(a_dd(k)+a_dd(g-k-1));
		if(r<b){bjl=g-k-99;bjr=k-99;}
		else{bjl=g-k-99;bjr=k-99;}
		ans+=a_dd(bjl+r)-a_dd(bjl);
		ans+=a_dd(bjr+b)-a_dd(bjr);
	}
	cout<<ans<<endl;
	return 0;
}

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Judge Result