和为S的两个数VS和为S的连续正数序列

void findTwoDataSumed(int *arr,int Length,int v_sum,int *num1,int *num2){
	if(arr==NULL||Length==0){
		return; 
	}
	int first=0; 
	int last=Length-1; 
	while(first<last){
		if(arr[first]+arr[last]>v_sum){
			last--; 
		}
		if(arr[first]+arr[last]<v_sum){
			first++; 
		}
		if(arr[first]+arr[last]==v_sum){
			*num1=arr[first]; 
			*num2=arr[last]; 
			return; 
		}	
	}
}

void findContinueSequenceSum(int v_sum){
	if(v_sum<3){
		return; 
	}
	int start=1; 
	int end=2; 
	int curSum=start+end; 
	int mid=(v_sum+1)/2; 
	while(start<mid){
		if(curSum==v_sum){
			printSeqNum(start,end); 
		}
		if(curSum>v_sum&&start<mid){
			curSum-=start; 
			start++; 
			if(curSum==v_sum){
				printSeqNum(start,end); 
			}
		}
		if(curSum<=v_sum&&start<mid){
			end++; 
			curSum+=end; 
		
		}
	}
}
void printSeqNum(int start,int end){
	for(int i=start; i<end; i++){
		std::cout<<start<<","; 
	}
	std::cout<<end; 
}