2.1-4

#pragma warning(disable:4996)#include <stdio.h>#include <stdlib.h>int main(){int i, j;int A[6] = { 1, 0, 1, 1, 0, 1 };int B[6] = { 1, 1, 1, 1, 1, 0 };int C[7] = { 0 };   //保证在次高位没有进位时C[0]为0for (i = 5; i >= 0; i--){if (A[i] + B[i] < 2){C[i + 1] = A[i] + B[i];}else if (A[i] + B[i] >= 2){if (i > 0){A[i - 1]++;C[i + 1] = A[i] + B[i] - 2;}else{C[i + 1] = A[i] + B[i] - 2;C[i] = 1;}}}for (j = 0; j < 7; j++){printf("%d ", C[j]);}printf("\n");system("pause");return 0;}