题解 | #斐波那契数列#
斐波那契数列
https://www.nowcoder.com/practice/c6c7742f5ba7442aada113136ddea0c3
class Solution {
public:
int Fibonacci(int n) {
if(n==1||n==2)
return 1;
vector<int> fib;
fib.push_back(1);
fib.push_back(1);
for(int i = 2;i<n;++i){
fib.push_back(fib[i-2]+fib[i-1]);
}
return fib.back();
}
};
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