题解 | #吃糖果#
吃糖果
https://www.nowcoder.com/practice/72015680c32b449899e81f1470836097
//KY48
#include<cstdio>
#define N 21
int dp[N];
int main(){
int n;
scanf("%d",&n);
dp[1] = 1;
dp[2] = 2;
for(int i = 3; i <= n ; ++i){
dp[i] = dp[i-1] + dp[i-2];
}
printf("%d\n",dp[n]);
}
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