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A_141205_CADENAS
//Title of this code #include <stdio.h> #include <string.h> int main(void) { char cad1[100]; char cad2[100]; char cad3[100]; char cad4[100]; short i, j; printf("Cadena ... "); gets(cad1); printf("Longitud de la cadena: %hd\n", strlen(cad1)); for(i = 0 ; cad1[i] != 0 ; i++); printf("Longitud de la cadena: %hd\n", i); strcpy(cad2, cad1); printf("Cadena1: %s\n", cad1); printf("Cadena2: %s\n", cad2); for(i = j = 0 ; cad1[i] ; i++) { if(isalnum(cad1[i])) { cad3[j++] = toupper(cad1[i]); } } cad3[j] = 0; printf("Cadena3: %s\n", cad3); for(i = 0 ; cad3[i] ; i++) { cad4[i] = cad3[strlen(cad3) - 1 - i]; } cad4[i] = 0; printf("Cadena4: %s\n", cad4); if(strcmp(cad3, cad4) == 0) { printf("SÍ ES PALÍNDROMO\n\n"); } else { printf("NO ES PALÍNDROMO\n\n"); } return 0; }
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