#include <stdio.h> int main(void) { unsigned long long int cpf; int dig1, dig2, dig3, dig4, dig5, dig6, dig7, dig8, dig9, resto1, resto2, dv1, dv2, soma, soma2; scanf("%llu", &cpf); dig1 = ((cpf / 10000000000) % 10); dig2 = ((cpf / 1000000000) % 10); dig3 = ((cpf / 100000000) % 10); dig4 = ((cpf / 10000000) % 10); dig5 = ((cpf / 1000000) % 10); dig6 = ((cpf / 100000) % 10); dig7 = ((cpf / 10000) % 10); dig8 = ((cpf / 1000) % 10); dig9 = ((cpf / 100) % 10); soma = ((dig1*10) + (dig2*9) + (dig3*8) + (dig4*7) + (dig5*6) + (dig6*5) + (dig7*4) + (dig8*3) + (dig9*2)); resto1 = soma % 11; dv1 = 11 - resto1; if(dv1 > 9){ dv1 = 0; } soma2 = ((dig1*11) + (dig2*10) + (dig3*9) + (dig4*8) + (dig5*7) + (dig6*6) + (dig7*5) + (dig8*4) + (dig9*3) + (dv1*2)); resto2 = soma2 % 11; dv2 = 11 - resto2; if(dv2 > 9){ dv2 = 0; } if(cpf == 00000000000 || cpf == 11111111111 || cpf == 22222222222 || cpf == 33333333333 || cpf == 44444444444 || cpf == 55555555555 || cpf == 66666666666 || cpf == 77777777777 || cpf == 88888888888 || cpf == 99999999999){ printf("invalido\n"); } else{ printf("valido\n"); } return 0; }