Submission #1258119

#TimeUsernameProblemLanguageResultExecution timeMemory
1258119allin27xTriple Peaks (IOI25_triples)C++20
34 / 100
2093 ms2632 KiB
#include "triples.h" #include <bits/stdc++.h> using namespace std; #define int long long int ans = 0; int n; void count1(vector<signed> &h){ for (int idx = 0; idx<n; idx++){ int x = h[idx]; int idh = idx - x; if (idh < 0) continue; int y = h[idh] - x; if (y <= 0 || y==x) continue; int idy = idx + y; if (idy >= n) continue; if (h[idy] == y) ans++; } } void count2(vector<signed> &h){ for (int idx = 0; idx<n; idx++){ int x = h[idx]; int idy = idx + x; if (idy >= n) continue; int y = h[idy]; int idh = idx - y; if (idh < 0) continue; if (h[idh] == x + y) ans++; } } void count3(vector<signed> &h){ for (int idx = 0; idx<n; idx++){ int x = h[idx]; int idh = idx + x; if (idh >= n) continue; int y = h[idh] - x; if (y <= 0 || y==x) continue; int idy = idh + y; if (idy >= n) continue; if (h[idy] == y) ans++; } } void count4(vector<signed> &h){ for (int idx = 0; idx<n; idx++){ for (int idy = idx; idy < n; idy++){ if (idy - idx != h[idx] + h[idy]) continue; int idh = idx + h[idy]; if (idh >= n) continue; if (h[idh] == h[idx] + h[idy]) ans++; } } } long long count_triples(std::vector<signed> h) { n = h.size(); auto rh = h; reverse(rh.begin(), rh.end()); count1(h); count1(rh); count2(h); count2(rh); count3(h); count4(h); return ans; } std::vector<signed> construct_range(signed M, signed K) { return {1, 1, 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...
#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...
#Verdict Execution timeMemoryGrader output
Fetching results...