Submission #1006035

#TimeUsernameProblemLanguageResultExecution timeMemory
1006035andecaandeciCollecting Mushrooms (NOI18_collectmushrooms)C++17
0 / 100
27 ms19156 KiB
#include <bits/stdc++.h> using namespace std; #define int long long #define ll long long #define ld long double #define pb push_back #define endl '\n' #define all(v) v.begin(), v.end() #define all1(v) v.begin() + 1, v.end() #define rall(v) v.rbegin(), v.rend() #define rall1(v) v.rbegin(), v.rend()-1 #define fr(m,n,k) for(int m=n;m<=k;m++) #define frr(m,n,k) for(int m=n;m>=k;m--) #define yes cout << "YES" #define no cout << "NO" #define yesm cout << "Yes" #define nom cout << "No" #define inf 1e18 #define ext {cout << -1; return;} #define zxt {cout << 0; return;} #define noxt {no;return;} #define yesxt {yes;return;} #define fill(x,s) memset(x, s, sizeof(x)); #define lb lower_bound #define ub upper_bound #define pi pair<int,int> #define vi vector<int> #define vvi vector<vi> #define vs vector<string> #define vpi vector<pi> #define mii map<int,int> #define si set<int> #define fi first #define se second #define sz size() #define el cout << endl // int mod = 1e9 + 7; int mod = 998244353; int ft(int n) {int ans = 1; for (int i = 1; i <= n; ++i) {ans = ans * i;} return ans;} int binpow(int x, int y) {if (y == 0) return 1; int z = 1; while (y) { if (y & 1) z = z * x % mod; x = x * x % mod; y >>= 1;} return z;} int inv(int x) {return binpow(x, mod - 2);} int bintoint(string s) {reverse(all(s)); int xx = 0; int m = 1; int z = s.sz; fr(j, 0, z) {xx += (s[j] == '1' ? m : 0); m <<= 1;} return xx;} string inttobin(int x) {if (x == 0) return "0"; string s; while (x) {s += (x & 1) + '0'; x >>= 1;} reverse(all(s)); return s;} string ads(string s, string p) {if (s.sz > p.sz) swap(s, p); int n = s.sz, m = p.sz; reverse(all(s)); reverse(all(p)); int tm = 0; string st; fr(i, 0, n - 1) {tm = s[i] - '0' + p[i] - '0' + tm; st += '0' + tm % 10; tm /= 10;} fr(i, n, m - 1) {tm = p[i] - '0' + tm; st += '0' + tm % 10; tm /= 10;} if (tm != 0) {st += '0' + tm % 10;} reverse(all(st)); return st;} bool id, id1, id2; int n, m, k, l, r, a, b, c, d, e, x, y, z, i, j, q, t, o; int mi = inf, ma, sum, ans, num, tp; string s, p; const int N = 2e3 + 5; mt19937 rng((int) new int); void solve() { int s; cin >> r >> c >> d >> s; char g[r + 2][c + 2]; int pre[r + 2][c + 2]; memset(pre, 0, sizeof(pre)); vpi tan; fr(i, 1, r) { fr(j, 1, c) { cin >> g[i][j]; if (g[i][j] == 'M') tan.pb({i, j}); if (g[i][j] == 'S') { int ni = i - d, nj = j - d; ni = max(ni, 0ll); nj = max(nj, 0ll); pre[ni][nj]++; ni = i - d, nj = j + d + 1; ni = max(ni, 0ll); nj = min(nj, c + 1); pre[ni][nj]--; ni = i + d + 1, nj = j - d; ni = min(ni, r + 1); nj = max(nj, 0ll); pre[ni][nj]--; ni = i + d + 1, nj = j + d + 1; ni = min(ni, r + 1); nj = min(nj, c + 1); pre[ni][nj]++; } } } int an[r + 1][c + 1]; fr(i, 1, r) { fr(j, 1, c) { pre[i][j] = pre[i][j]; pre[i][j] += pre[i - 1][j]; pre[i][j] += pre[i][j - 1]; pre[i][j] -= pre[i - 1][j - 1]; // cout << pre[i][j] << " "; } // el; } for (auto [i, j] : tan) { if (pre[i][j] >= s) ans++; } cout << ans; } signed main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(0); int T = 1; // cin >> T; for (; T--;) { cout << fixed << setprecision(1); solve(); if (T) cout << endl; } return 0; } // Tc, angka kecil), No Overthink(trivial tp modified), // Check Kasus Khusus(1,2,1e18), ganti jd bentuk lain (2 case or etc) // bedah 1 1 variable yg bisa dicari, cari dari jwbn ke ques // Sorting : Iterate Greedy (pake data struct) / dp / binser // Graphs / Tree : DFS / adj / dis[a][b] != dis[a][c] + dis[c][b] / indegree // Yang keliatan kyk dp : bisa jd brute force doang // Data Structure : BIT / DSU / Segtree, SparseT / dequeue // Compression, Line Sweep // Parity (2 or 3, mod 4..) klo dilakuin 2 kali jadi sama aja -> parity mod 2 /* brute force, greedy, pref sum, 2pointer, gcd/lcm, even/odd min/max, binser, bfs/dfs, iterate, multiple/divisor bipartite graph,bitmasking, sliding window, konstanta divconquer, djikstra, stack(prev and next smaller) prefix difference */ // tools : //__lg(x),__builtinpopcount,nextpermutation(), is_sorted / alpha / digit,

Compilation message (stderr)

mushrooms.cpp: In function 'void solve()':
mushrooms.cpp:88:9: warning: unused variable 'an' [-Wunused-variable]
   88 |     int an[r + 1][c + 1];
      |         ^~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...