poj_1163 The Triangle

题目链接：http://poj.org/problem?id=1163

 

//C++代码
#include<iostream>
using namespace std;

int main(){
	int n,i,j,a[105][105];
	cin>>n;
	for(i=1;i<=n;i++){
		for(j=1;j<=i;j++) cin>>a[i][j];
	}
	for(i=n-1;i>=1;i--){
		for(j=1;j<=i;j++) a[i][j]+=(a[i+1][j]>a[i+1][j+1]? a[i+1][j]:a[i+1][j+1]);
	}
	cout<<a[1][1]<<endl;
	return 0;
}