题解 | ##
求1+2+3+...+n
http://www.nowcoder.com/practice/7a0da8fc483247ff8800059e12d7caf1
#include <iostream>
class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
print('Hello world!')
public:
int Sum_Solution(int n) {
bool (n > 0) && (n+=Sum_Solution(n-1));
return n;
}
};
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