#include <bits/stdc++.h>
using namespace std;
typedef unsigned uint;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ldbl;
typedef pair<int, int> pii;
typedef pair<uint, uint> puu;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<double, double> pdd;
typedef vector<int> vi;
typedef vector<uint> vu;
typedef vector<ll> vll;
typedef vector<ull> vull;
typedef vector<pii> vpii;
typedef vector<puu> vpuu;
typedef vector<pll> vpll;
typedef vector<pull> vpull;
typedef vector<string> vstr;
typedef vector<double> vdbl;
typedef vector<ldbl> vldbl;
#define pb push_back
#define ppb pop_back
#define pfr push_front
#define ppfr pop_front
#define emp emplace
#define empb emplace_back
#define be begin
#define rbe rbegin
#define all(x) (x).be(), (x).end()
#define rall(x) (x).rbe(), (x).rend()
#define fir first
#define sec second
#define mkp make_pair
#define brif(cond) if (cond) break
#define ctif(cond) if (cond) continue
#define retif(cond) if (cond) return
void canhazfast() {ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);}
template<typename T> T gcd(T a, T b) {return b ? gcd(b, a%b) : a;}
template<typename T> T extgcd(T a, T b, T &x, T &y)
{
T x0 = 1, y0 = 0, x1 = 0, y1 = 1;
while (b) {
T q = a/b; a %= b; swap(a, b);
x0 -= q*x1; swap(x0, x1);
y0 -= q*y1; swap(y0, y1);
}
x = x0; y = y0; return a;
}
int ctz(uint x) {return __builtin_ctz(x);}
int ctzll(ull x) {return __builtin_ctzll(x);}
int clz(uint x) {return __builtin_clz(x);}
int clzll(ull x) {return __builtin_clzll(x);}
int popcnt(uint x) {return __builtin_popcount(x);}
int popcntll(ull x) {return __builtin_popcountll(x);}
int bsr(uint x) {return 31^clz(x);}
int bsrll(ull x) {return 63^clzll(x);}
#define NM 2048
#define K 1000016
#define INF ((int)5e6)
#define LLINF ((ll)5e15)
const int dr[4] = {-1, 0, 0, +1};
const int dc[4] = {0, -1, +1, 0};
char a[NM][NM];
int dist[NM][NM];
pii q[NM*NM];
int main()
{
canhazfast();
int n, m, k, sz = 0;
int diff, cnt_a, cnt_b;
int ans_cnt = 0;
ll ans_low = LLINF;
cin >> n >> m >> k;
for (int i = 0; i < n; ++i) {
cin >> a[i];
fill_n(dist[i], m, INF);
}
dist[0][0] = 0;
q[sz++] = {0, 0};
for (int i = 0; i < sz; ++i) {
int ru, cu, dv;
tie(ru, cu) = q[i];
dv = dist[ru][cu]+1;
for (int j = 0; j < 4; ++j) {
int rv = ru+dr[j];
int cv = cu+dc[j];
ctif(rv < 0 || rv >= n);
ctif(cv < 0 || cv >= m);
ctif(a[rv][cv] != '.');
if (dist[rv][cv] > dv) {
dist[rv][cv] = dv;
q[sz++] = {rv, cv};
}
}
}
diff = dist[n-1][m-1]-(n+m-2);
cnt_a = (n+m-2)+diff/2;
cnt_b = diff/2;
for (int i = 0; i < k; ++i) {
int a, b;
cin >> a >> b;
ll res = (ll)cnt_a*a+(ll)cnt_b*b;
if (ans_low > res) {
ans_low = res;
ans_cnt = 0;
}
if (ans_low == res) ++ans_cnt;
}
cout << ans_low << ' ' << ans_cnt << '\n';
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | #include <bits/stdc++.h> using namespace std; typedef unsigned uint; typedef long long ll; typedef unsigned long long ull; typedef long double ldbl; typedef pair<int, int> pii; typedef pair<uint, uint> puu; typedef pair<ll, ll> pll; typedef pair<ull, ull> pull; typedef pair<double, double> pdd; typedef vector<int> vi; typedef vector<uint> vu; typedef vector<ll> vll; typedef vector<ull> vull; typedef vector<pii> vpii; typedef vector<puu> vpuu; typedef vector<pll> vpll; typedef vector<pull> vpull; typedef vector<string> vstr; typedef vector<double> vdbl; typedef vector<ldbl> vldbl; #define pb push_back #define ppb pop_back #define pfr push_front #define ppfr pop_front #define emp emplace #define empb emplace_back #define be begin #define rbe rbegin #define all(x) (x).be(), (x).end() #define rall(x) (x).rbe(), (x).rend() #define fir first #define sec second #define mkp make_pair #define brif(cond) if (cond) break #define ctif(cond) if (cond) continue #define retif(cond) if (cond) return void canhazfast() {ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);} template<typename T> T gcd(T a, T b) {return b ? gcd(b, a%b) : a;} template<typename T> T extgcd(T a, T b, T &x, T &y) { T x0 = 1, y0 = 0, x1 = 0, y1 = 1; while (b) { T q = a/b; a %= b; swap(a, b); x0 -= q*x1; swap(x0, x1); y0 -= q*y1; swap(y0, y1); } x = x0; y = y0; return a; } int ctz(uint x) {return __builtin_ctz(x);} int ctzll(ull x) {return __builtin_ctzll(x);} int clz(uint x) {return __builtin_clz(x);} int clzll(ull x) {return __builtin_clzll(x);} int popcnt(uint x) {return __builtin_popcount(x);} int popcntll(ull x) {return __builtin_popcountll(x);} int bsr(uint x) {return 31^clz(x);} int bsrll(ull x) {return 63^clzll(x);} #define NM 2048 #define K 1000016 #define INF ((int)5e6) #define LLINF ((ll)5e15) const int dr[4] = {-1, 0, 0, +1}; const int dc[4] = {0, -1, +1, 0}; char a[NM][NM]; int dist[NM][NM]; pii q[NM*NM]; int main() { canhazfast(); int n, m, k, sz = 0; int diff, cnt_a, cnt_b; int ans_cnt = 0; ll ans_low = LLINF; cin >> n >> m >> k; for (int i = 0; i < n; ++i) { cin >> a[i]; fill_n(dist[i], m, INF); } dist[0][0] = 0; q[sz++] = {0, 0}; for (int i = 0; i < sz; ++i) { int ru, cu, dv; tie(ru, cu) = q[i]; dv = dist[ru][cu]+1; for (int j = 0; j < 4; ++j) { int rv = ru+dr[j]; int cv = cu+dc[j]; ctif(rv < 0 || rv >= n); ctif(cv < 0 || cv >= m); ctif(a[rv][cv] != '.'); if (dist[rv][cv] > dv) { dist[rv][cv] = dv; q[sz++] = {rv, cv}; } } } diff = dist[n-1][m-1]-(n+m-2); cnt_a = (n+m-2)+diff/2; cnt_b = diff/2; for (int i = 0; i < k; ++i) { int a, b; cin >> a >> b; ll res = (ll)cnt_a*a+(ll)cnt_b*b; if (ans_low > res) { ans_low = res; ans_cnt = 0; } if (ans_low == res) ++ans_cnt; } cout << ans_low << ' ' << ans_cnt << '\n'; return 0; } |
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