题解 | #斐波那契数列#
斐波那契数列
https://www.nowcoder.com/practice/c6c7742f5ba7442aada113136ddea0c3
/**
*
* @param n int整型
* @return int整型
*/
int Fibonacci(int n) {
// write code here
if(n <= 2) return 1;
int a = 1, b = 1, c = 2;
for(int i = 3; i <= n; i++){
c = a + b;
a = b;
b = c;
}
return c;
}
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