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两次才过,汗。每次都没题目输入而烦恼,到底是循环输入还是每次都单独输入。#include<stdio.h> int main(void) { float i; while(scanf("%f",&i)==1) { float sum=0; int j=0,k=2; if(i==0.00) return 0; do {sum+=(float)1/k; k++; j++; } while (sum<i); printf("%d card(s)\n",j); } return 0; } Followed by:
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