Snail TrailsAll Ireland Contest Sally Snail likes to stroll on a N x N square grid (1 <n <= 120). She always starts in the upper left corner of the grid. The grid has empty squares (denoted below by `.') and a number (B) of barriers (denoted below b…
题目链接 题解 一看题没什么思路.写了个暴力居然可过?! Code #include<bits/stdc++.h> #define LL long long #define RG register using namespace std; inline int gi() { bool f = 0; char c = getchar(); RG int x = 0; while (c!='-' && (c < '0' || c > '9')) c = getchar(…
Vasya went for a walk in the park. The park has n glades, numbered from 1 to n. There are m trails between the glades. The trails are numbered from 1 to m, where the i-th trail connects glades xi and yi. The numbers of the connected glades may be the…
C. Trails and Glades time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Vasya went for a walk in the park. The park has n glades, numbered from 1 to n. There are m trails between the glades.…