c - 具有矩阵分配和文本碰撞的程序

Question

我尝试这样解决:

#include <stdio.h>


    #include <stdio.h>
    #include <stdlib.h>
    #include<string.h>
    typedef struct
    {
        int r;
        int c;
        char *word;

    } triplet;

    int main()
    {

       triplet *a,aux;
       char **b;
       int j,i,n;
       FILE *f,*g,*p;
       f=fopen("data.txt","r");//Se deschide fisierul text
       g=fopen("outfile.txt","w");
       a=calloc(10,sizeof(triplet));//Se aloca dinamic spatiu pentru structura

       i=0;

       while (!(feof(f)))
       {
          a[i].word=malloc(60);
          fscanf(f,"[ %d %d %s ]\n",&(a[i].r),&(a[i].c),a[i].word);
          i++;
       }

       n=i;
       printf("%d \n",n);

       b = malloc(n * sizeof(char *));
       for (i = 0; i < n; i++)
          b[i] = calloc(n, sizeof(char));

       for(i=0; i<n; i++)
       {
          printf("%d %d %s\n",a[i].r,a[i].c,a[i].word);
       }

       for(i=0; i<n; i++)
       {
          b[i]=realloc(b,a[i].c+strlen(a[i].word)*sizeof(char));
          for(j=0; j<n; j++)
          {
             b[i][j]=' ';

             for(i=0; i<n; i++)
             {
                for(j=0; j<strlen(a[i].word); j++)
                // if ( b[a[i].r,a[i].c+j]==' ')
                   b[a[i].r,a[i].c+j]=a[i].word[j];
                //else printf("collide at... \n");
             } 

             for(i=0; i<n; i++)
                for(j=0; j<n; j++)
                   printf("%c ",b[i][j]);


          }
       }
    }



<!-- end snippet -->

 #include <stdlib.h>
 #include<string.h>
typedef struct
{
    int r;
    int c;
    char *word;

} triplet;

int main()
{

   triplet *a,aux;
   char **b;
   int j,i,n;
   FILE *f,*g,*p;
   f=fopen("data.txt","r");
   g=fopen("outfile.txt","w");
   a=calloc(10,sizeof(triplet));

   i=0;

   while (!(feof(f)))
   {
      a[i].word=malloc(60);
      fscanf(f,"[ %d %d %s ]\n",&(a[i].r),&(a[i].c),a[i].word);
      i++;
   }

   n=i;
   printf("%d \n",n);

   b = malloc(n * sizeof(char *));
   for (i = 0; i < n; i++)
      b[i] = calloc(n, sizeof(char));

   for(i=0; i<n; i++)
   {
      printf("%d %d %s\n",a[i].r,a[i].c,a[i].word);
   }

   for(i=0; i<n; i++)
   {
      b[i]=realloc(b,a[i].c+strlen(a[i].word)*sizeof(char));
      for(j=0; j<n; j++)
      {
         b[i][j]=' ';

         for(i=0; i<n; i++)
         {
            for(j=0; j<strlen(a[i].word); j++)
               // if ( b[a[i].r,a[i].c+j]==' ')
               b[a[i].r,a[i].c+j]=a[i].word[j];
               //else printf("collide at... \n");
         }

         for(i=0; i<n; i++)
            for(j=0; j<n; j++)
               printf("%c ",b[i][j]);
This is what I needed to do: 

      }
   }
}

当我尝试实现它时，它只会读取结构以及如何动态分配矩阵空间，因为我不知道行数。我做错了什么？任何帮助都会非常感谢。我该如何处理碰撞问题？我想过使用 strlen 但不确定它是否有效。

Answer 1

以下建议代码:

1. 干净地编译
2. 从输入文件构建源数据数组
3. 正确检查错误，如果发生错误，则会自行清除。
4. 将其留给 OP 添加执行冲突检查的逻辑
5. 将其留给OP添加逻辑以输出所需的结果

现在建议的代码:

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

struct sTriplet
{
    int r;
    int c;
    char word[40];
};

typedef struct sTriplet triplet;


int main( void )
{

    char line[62];
    triplet *sourceArray = NULL;

    FILE *fin = fopen( "data.txt", "r" );
    if( !fin )
    {
        perror( "fopen to read data.txt failed" );
        exit( EXIT_FAILURE );
    }

    // implied else, fopen successful

    size_t lineCount = 0;
    while( fgets( line, sizeof line, fin ) )
    {
        lineCount++;
        triplet *temp = realloc( sourceArray, lineCount*sizeof( triplet ) );
        if( !temp )
        {
            perror( "realloc failed" );
            free( sourceArray );
            exit( EXIT_FAILURE );
        }

        // implied else, realloc successful

        sourceArray = temp;

        if( 3 != sscanf( line, "[ %d %d %s ]",
                &(sourceArray[lineCount].r),
                &(sourceArray[lineCount].c),
                sourceArray[lineCount].word) )
        {
            fprintf( stderr, "parsing of line from input file failed" );
            free( sourceArray );
            exit( EXIT_FAILURE );
        }
    }

    char  collisionChecker[ lineCount ][ MAX_LINE_LEN };
    memset( collisionChecker, ' ', MAX_LINE_LEN * lineCount );

    memcpy( &collisionChecker[0], &sourceArray[0], sizeof( triplet ) );

    for( size_t i = 1; i < lineCount; i++ )  // 1 because 0 already set
    {
        // place logic here to check for overlaps and print status
    }

    free( sourceArray );

    // note following loop may output some extra blank lines
    for( size_t i=0; i< lineCount; i++ )
    {
        printf( "%s\n", collisionChecker[i] );
    }
}