题解 | #斐波那契数列#
斐波那契数列
https://www.nowcoder.com/practice/c6c7742f5ba7442aada113136ddea0c3
public class Solution {
public int Fibonacci(int n) {
if(n == 1 || n == 2){
return 1;
}
int a = 1;
int b = 1;
int sum = 0;
for(int i = 3; i <= n; i++){
sum = a + b;
a = b;
b = sum;
}
return sum;
}
}
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