C 字符串矩阵

Question

我遇到一个问题:

Given a matrix of size n x m with type of date strings of characters.
Make a program who print the string of maximum lenght from every line of matrix.

我做了一些事情，但是当我尝试执行时它不起作用。 我不知道为什么。有人可以给我一些建议吗？

#include <stdio.h>
#include <stdlib.h>

int main()
{
    char tab[50][255];
    int m, n, i, j;
    printf("\n Dati numarul de linii : ");
    scanf("%d", &m);
    printf("\n Dati numarul de coloane : ");
    scanf("%d", &n);
    for(i=0; i<m; i++)
    {
       for(j=0; j<n; j++)
       {
          printf("\n Elementul [%d][%d] de tip sir de caractere : ", i+1, j+1);
          scanf("%s", tab[50][255]);
       }
    }
    return 0;
}

Answer 1

char tab[50][5][255];
int m, n, i, j;
printf("\n Dati numarul de linii : ");
scanf("%d", &m);
printf("\n Dati numarul de coloane : ");
scanf("%d", &n);
for(i=0; i<m; i++)
{
   for(j=0; j<n; j++)
   {
      printf("\n Elementul [%d][%d] de tip sir de caractere : ", i+1, j+1);
      scanf("%s", tab[i][j]);
   }
}