C语言学习笔记 (006) - 二维数组传参的三种表现形式

# include <stdio.h>
# include <stdlib.h>
# define M 6
# define N 5

int getdate(int (*sp)[M]){
    int i,j,x;
    for(i=0;i<N;i++,j=0){
        while(j<M){
            x=rand()%41;
            if(x>=10){
            sp[i][j]=x;j++;
            }
        }
    }
    return 0;
}

int lineave(int s[][M],float a[]){
    int i,j;
    float ave = 0.0;
    for(i=0;i<N;i++,ave = 0.0){
        for(j=0;j<M;j++){
            ave = ave +s[i][j];
        }
        a[i] = ave/M;
    }
    return 0;
}

int outdate(int sp[N][M],float a[]){
    int i,j;
    printf("Output the result :\n");
    for(i=0;i<N;i++){
        for(j=0;j<M;j++)
            printf("%4d\t",sp[i][j]);
            printf(" :%6.2f\n",a[i]);
        }
    printf("\n");
    return 0;
}

int main(void){
    int r[N][M] = {0};
    float ave[N];
    getdate(r);
    lineave(r,ave);
    outdate(r,ave);
}