playboyJnR的博客

#include <stdio.h> #include <time.h> int main(void) { time_t t; time(&t); printf("Today's date and time: %s", ctime(&t)); return 0; }

main() { int i; int n; float a; float sum=0; printf("Please input N:\n"); scanf("%d",&n); for(i=1;i<=n;i++) { a=1/(float)i; sum+=a; printf("%d. %f\n",i,sum); } }

按提示输入每个小组的人数，并打印出以小组人数为依据的柱状图

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