二維數(shù)組求所有元素的和
#include <stdio.h>
int main()
{
int a[4][4], i, j;
printf("請(qǐng)輸入數(shù)字\n");
for (i = 0; i < 4; i++)
for (j = 0; j < 4; j++)
scanf_s("%d", &a[i][j]);
int sum;
for (i = 0; i < 4; i++)
for (j = 0; j < 4; j++)
sum += a[i][j];
printf("%d\n", sum);
}
2021-07-07
參考一下吧
#include?<stdio.h>
int?main()
{
????int?a[4][4],?i,?j;
????printf("請(qǐng)輸入數(shù)字\n");
????for?(i?=?0;?i?<?4;?i++)
????{
????????for?(j?=?0;?j?<?4;?j++)
????????scanf("%d",?&a[i][j]);
????}
????int?sum;
????for?(i?=?0;?i?<?4;?i++)
????{
????????for?(j?=?0;?j?<?4;?j++)
????????sum?+=?a[i][j];
????}
????printf("最終等于%d\n",?sum);
????return?0;
}