hwh/3th.c

#include<stdio.h>
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];
	int l;
	for(l=0;l<3;l++){
		int k;
		for(k=0;k<4;k++){
			scanf("%f",&num[l][k]);
		}
	}
	int i;
	for( i=0;i<3;i++){
		float sum=0;
		int j;
		for(j=1;j<4;j++){
			sum+=num[i][j];
			if(j==3){
				printf("%.0f,%.1f,%.1f\n",num[i][0],sum,sum/3); 
			}
		}
	}
}