CodeForces Gym 100989E Accepted Passwords

水题，分类讨论，模拟一下就行

#include <cstdio>#include <iostream>#include <algorithm>#include <cmath>#include <queue>#include <cstring>#include <vector>using namespace std;char A[105], B[105];int n1, n2;int main(){//freopen("input.txt", "r", stdin);scanf("%s%s", A, B);bool match = true;n1 = strlen(A);n2 = strlen(B);if (n1 < 8){if (n1 != n2){match = false;}else{for (int i = 0; i < n1; ++i){if (A[i] != B[i]){match = false;break;}}}}else{if (n1 == n2){int wrong = 0;for (int i = 0; i < n1; ++i){if (A[i] != B[i]){wrong++;}}if (wrong <= 1)match = true;elsematch = false;}else if (n2 == n1 - 1){bool dropped = false;for (int i = 0, j = 0; i <= n1&&j <= n2; ++i, ++j){if (A[i] != B[j]){if (dropped){match = false;break;}else{dropped = true;--j;}}}}elsematch = false;}if (match)printf("yes\n");elseprintf("no\n");//system("pause");//while (1);return 0;}