#include int main(){ printf(" 1.Input\n"); printf(" 2.Output\n"); printf(" 3.Order\n"); printf(" 4.Quit\n"); char a; scanf("%c",&a); if(a=='i'){ printf("Please input info of the three students:\n"); }else if(a=='o'){ printf("You are trying to Output info\n"); }else if(a=='m'){ printf("You are trying to Make things ordered\n"); }else if(a=='q'){ printf("You are about to Quit\n"); }else{ printf("Wrong input"); } float num[3][4]; for(int i=0;i<3;i++){ for(int j=0;j<4;j++){ scanf("%f",&num[i][j]); } } for(int i=0;i<3;i++){ float sum; for(int j=1;j<4;j++){ sum+=num[i][j]; if(j==3){ printf("%.0f,%.1f,%.1f\n",num[i][0],sum,sum/3); sum=0; } } } }