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#include <stdio.h>
 
int InitMap();
int LoadMapData();
int SaveMapData();
 
unsigned char Map[100][100];
 
int main()
{
  InitMap();
  LoadMapData();
  // 編集・表示などをする
  SaveMapData();
  return 0;
}
 
int InitMap()
{
  int x, y;
  for(y = 0; y < 100; ++y){
    for(x = 0; x < 100; ++x){
      Map[x][y] = (unsigned char)0;
    }
  }
  return 0;
}
 
int LoadMapData()
{
  int x, y;
  for(y = 0; y < 100; ++y){
    for(x = 0; x < 100; ++x){
      Map[x][y] = getc();
      if(feof(stdin)){
        return -1;
      }
    }
  }
  return 0;
}
 
int SaveMapData()
{
  int x, y;
  for(y = 0; y < 100; ++y){
    for(x = 0; x < 100; ++x){
      putc(Map[x][y]);
    }
  }
  return 0;
}

In file included from prog.c:1:0:
prog.c: In function 'LoadMapData':
prog.c:34:19: error: too few arguments to function '_IO_getc'
       Map[x][y] = getc();
                   ^
In file included from /usr/include/stdio.h:74:0,
                 from prog.c:1:
/usr/include/libio.h:434:12: note: declared here
 extern int _IO_getc (_IO_FILE *__fp);
            ^
prog.c: In function 'SaveMapData':
prog.c:48:21: error: macro "putc" requires 2 arguments, but only 1 given
       putc(Map[x][y]);
                     ^
prog.c:48:7: warning: statement with no effect [-Wunused-value]
       putc(Map[x][y]);
       ^

Standard output is empty