07/07/16 18:18:48
すいませんがどなたか使い方教えてください･･･
750 ：デフォルトの名無しさん [sage] ：2007/07/12(木) 13:00:15
>>748 ショボイですが
暗号
#include <stdio.h>
#include <ctype.h>
static char alpha[53] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
static char table[53] = "zNFeYMljvJXKicfrGyDEOwQpHkCLbxhqRAPsnouVTaWIZdUmBStg";
int getindex(char *str, int ch){
int i;
for(i = 0; i < 52 && str[i] != ch; i++) ;
return i;
}
int main(int argc, char *argv[]){
FILE *fpin, *fpout;
int ch, op;
if(argc < 3 || (fpin = fopen(argv[1], "r")) == NULL || (fpout = fopen(argv[2], "w")) == NULL) exit(1);
while((ch = fgetc(fpin)) != EOF)
if(isalpha(ch)) fputc(table[getindex(alpha, ch)], fpout);
else fputc(ch, fpout);
fclose(fpin), fclose(fpout);
return 0;
}