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#include <stdio.h> | |
#include <string.h> | |
#define NUM_LEN (100) | |
int main(void) | |
{ | |
int i; | |
int count; | |
char num[NUM_LEN]; | |
char roma_num[NUM_LEN][NUM_LEN]; | |
printf("数値を入力して下さい="); | |
scanf("%s", num); | |
count = strlen(num); | |
for (i = 0; i < strlen(num); i++){ | |
roma_num[i][0] = '\0'; | |
} | |
for (i = 0; i < strlen(num); i++){ | |
if (count == 4){ | |
switch (num[i]){ | |
case '1': | |
strcat(roma_num[i], "M"); | |
break; | |
case '2': | |
strcat(roma_num[i], "MM"); | |
break; | |
case '3': | |
strcat(roma_num[i], "MMM"); | |
break; | |
} | |
} | |
if (count == 3){ | |
switch (num[i]){ | |
case '1': | |
strcat(roma_num[i], "C"); | |
break; | |
case '2': | |
strcat(roma_num[i], "CC"); | |
break; | |
case '3': | |
strcat(roma_num[i], "CCC"); | |
break; | |
case '4': | |
strcat(roma_num[i], "CD"); | |
break; | |
case '5': | |
strcat(roma_num[i], "D"); | |
break; | |
case '6': | |
strcat(roma_num[i], "DC"); | |
break; | |
case '7': | |
strcat(roma_num[i], "DCC"); | |
break; | |
case '8': | |
strcat(roma_num[i], "DCCC"); | |
break; | |
case '9': | |
strcat(roma_num[i], "CM"); | |
break; | |
} | |
} | |
if (count == 2){ | |
switch (num[i]){ | |
case '1': | |
strcat(roma_num[i], "X"); | |
break; | |
case '2': | |
strcat(roma_num[i], "XX"); | |
break; | |
case '3': | |
strcat(roma_num[i], "XXX"); | |
break; | |
case '4': | |
strcat(roma_num[i], "XL"); | |
break; | |
case '5': | |
strcat(roma_num[i], "L"); | |
break; | |
case '6': | |
strcat(roma_num[i], "LX"); | |
break; | |
case '7': | |
strcat(roma_num[i], "LXX"); | |
break; | |
case '8': | |
strcat(roma_num[i], "LXXX"); | |
break; | |
case '9': | |
strcat(roma_num[i], "XC"); | |
break; | |
} | |
} | |
if (count == 1){ | |
switch (num[i]){ | |
case '1': | |
strcat(roma_num[i], "I"); | |
break; | |
case '2': | |
strcat(roma_num[i], "II"); | |
break; | |
case '3': | |
strcat(roma_num[i], "III"); | |
break; | |
case '4': | |
strcat(roma_num[i], "IV"); | |
break; | |
case '5': | |
strcat(roma_num[i], "V"); | |
break; | |
case '6': | |
strcat(roma_num[i], "VI"); | |
break; | |
case '7': | |
strcat(roma_num[i], "VII"); | |
break; | |
case '8': | |
strcat(roma_num[i], "VIII"); | |
break; | |
case '9': | |
strcat(roma_num[i], "IX"); | |
break; | |
} | |
} | |
count--; | |
} | |
printf("数値%sをローマ数字に変更=", num); | |
for (i = 0; i < strlen(num); i++){ | |
printf("%s", roma_num[i]); | |
} | |
return (0); | |
} | |
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