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c_cpp
4 years ago
308 B
5
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#include<stdio.h> #include<string.h> #include<math.h> #include<algorithm> using namespace std; long long int a; long long int ans(long long int num){ if(num<=1){ return 1; } else{ return ans(num-1)+ans(num-2); } } int main(){ while(scanf("%lld",&a)!=EOF && a!=-1){ printf("%lld\n",ans(a)); } }
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