#include <stdio.h> int main(){ int n; if (scanf("%d",&n)!=EOF){ int sum=1; for (int i=0;i<n;i++){ sum*=2; } printf("2^%d = %d",n,sum); }else{ printf("input wrong"); } return 0; }
#include <stdio.h> int main(){ int n; if (scanf("%d",&n)!=EOF){ int sum=1; for (int i=0;i<n;i++){ sum*=2; } printf("2^%d = %d",n,sum); }else{ printf("input wrong"); } return 0; }
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