//#pragma comment(linker, "/stack:200000000") #ifndef LOCAL #pragma GCC optimize("O3") #endif //#pragma GCC optimize("Ofast") //#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") //#pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; #define sim template < class c #define ris return * this #define dor > debug & operator << #define eni(x) sim > typename \ enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return rge<c>{i, j}; } sim > auto dud(c* x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifdef LOCAL ~debug() { cerr << endl; } eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair < b, c > d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (auto it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c&) { ris; } #endif }; #define var(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] " #define pb push_back #define mp make_pair #define st first #define nd second #define ALL(x) (x).begin(), (x).end() #define SZ(x) ((int)(x).size()) #define un(x) x.erase(unique(ALL(x)),x.end()) #define REP(i,x,v)for(int i=x;i<=v;i++) #define REPD(i,x,v)for(int i=x;i>=v;i--) #define FOR(i,v)for(int i=0;i<v;i++) #define TRAV(i,v)for(auto &i:(v)) #define REMIN(x,v) x=min(x,v); #define REMAX(x,v) x=max(x,v); mt19937_64 rng(134569); int rd(int l, int r) {return uniform_int_distribution<int>(l, r)(rng);} using ll=long long; using pii=pair<int,int>; using pll=pair<ll,ll>; using vi=vector<int>; using vll=vector<ll>; const int MOD=1e9+7;//998244353; #define INF (1<<30) int a[2005][2005]; int dx[]={1,-1,0,0}; int dy[]={0,0,-1,1}; int d[2005][2005]; int bfs(int n,int m) { REP(i,1,n)REP(j,1,m) d[i][j]=INF; queue<pii> Q; d[1][1]=0; Q.push({1,1}); while(SZ(Q)) { auto pa = Q.front();Q.pop(); FOR(k, 4) { int xx=pa.st+dx[k]; int yy=pa.nd+dy[k]; if (a[xx][yy]==0) { if (d[xx][yy]==INF) { d[xx][yy]=d[pa.st][pa.nd]+1; Q.push({xx,yy}); } } } } return d[n][m]; } int main() { ios_base::sync_with_stdio(0);cin.tie(0); cout << fixed << setprecision(11); cerr << fixed << setprecision(6); int n,m,k;cin>>n>>m>>k; FOR(x, n+2)FOR(y,m+2) a[x][y]=1; FOR(i,n) { string s;cin>>s; FOR(j,m) { if (s[j]=='X') a[i+1][j+1]=1; else a[i+1][j+1]=0; } } ll di=bfs(n,m); ll ca = n-1+m-1+(di-(n-1+m-1))/2; ll cb = (di-(n-1+m-1))/2; ll best_dist = (1LL<<60); int best_cnt=0; FOR(i, k) { ll A,B;cin>>A>>B; ll f=A*ca+B*cb; if (f<best_dist) { best_dist=f; best_cnt=1; } else if (f==best_dist) { best_cnt++; } } cout<<best_dist<<" "<<best_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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | //#pragma comment(linker, "/stack:200000000") #ifndef LOCAL #pragma GCC optimize("O3") #endif //#pragma GCC optimize("Ofast") //#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") //#pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; #define sim template < class c #define ris return * this #define dor > debug & operator << #define eni(x) sim > typename \ enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) { sim > struct rge { c b, e; }; sim > rge<c> range(c i, c j) { return rge<c>{i, j}; } sim > auto dud(c* x) -> decltype(cerr << *x, 0); sim > char dud(...); struct debug { #ifdef LOCAL ~debug() { cerr << endl; } eni(!=) cerr << boolalpha << i; ris; } eni(==) ris << range(begin(i), end(i)); } sim, class b dor(pair < b, c > d) { ris << "(" << d.first << ", " << d.second << ")"; } sim dor(rge<c> d) { *this << "["; for (auto it = d.b; it != d.e; ++it) *this << ", " + 2 * (it == d.b) << *it; ris << "]"; } #else sim dor(const c&) { ris; } #endif }; #define var(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] " #define pb push_back #define mp make_pair #define st first #define nd second #define ALL(x) (x).begin(), (x).end() #define SZ(x) ((int)(x).size()) #define un(x) x.erase(unique(ALL(x)),x.end()) #define REP(i,x,v)for(int i=x;i<=v;i++) #define REPD(i,x,v)for(int i=x;i>=v;i--) #define FOR(i,v)for(int i=0;i<v;i++) #define TRAV(i,v)for(auto &i:(v)) #define REMIN(x,v) x=min(x,v); #define REMAX(x,v) x=max(x,v); mt19937_64 rng(134569); int rd(int l, int r) {return uniform_int_distribution<int>(l, r)(rng);} using ll=long long; using pii=pair<int,int>; using pll=pair<ll,ll>; using vi=vector<int>; using vll=vector<ll>; const int MOD=1e9+7;//998244353; #define INF (1<<30) int a[2005][2005]; int dx[]={1,-1,0,0}; int dy[]={0,0,-1,1}; int d[2005][2005]; int bfs(int n,int m) { REP(i,1,n)REP(j,1,m) d[i][j]=INF; queue<pii> Q; d[1][1]=0; Q.push({1,1}); while(SZ(Q)) { auto pa = Q.front();Q.pop(); FOR(k, 4) { int xx=pa.st+dx[k]; int yy=pa.nd+dy[k]; if (a[xx][yy]==0) { if (d[xx][yy]==INF) { d[xx][yy]=d[pa.st][pa.nd]+1; Q.push({xx,yy}); } } } } return d[n][m]; } int main() { ios_base::sync_with_stdio(0);cin.tie(0); cout << fixed << setprecision(11); cerr << fixed << setprecision(6); int n,m,k;cin>>n>>m>>k; FOR(x, n+2)FOR(y,m+2) a[x][y]=1; FOR(i,n) { string s;cin>>s; FOR(j,m) { if (s[j]=='X') a[i+1][j+1]=1; else a[i+1][j+1]=0; } } ll di=bfs(n,m); ll ca = n-1+m-1+(di-(n-1+m-1))/2; ll cb = (di-(n-1+m-1))/2; ll best_dist = (1LL<<60); int best_cnt=0; FOR(i, k) { ll A,B;cin>>A>>B; ll f=A*ca+B*cb; if (f<best_dist) { best_dist=f; best_cnt=1; } else if (f==best_dist) { best_cnt++; } } cout<<best_dist<<" "<<best_cnt<<"\n"; return 0; } |