Submission #1083802

#TimeUsernameProblemLanguageResultExecution timeMemory
1083802SamueleVidCatfish Farm (IOI22_fish)C++17
3 / 100
66 ms17488 KiB
#include <bits/stdc++.h> using namespace std; #define ll long long constexpr int MAXN = 1e5 + 5; ll sum_tutto(int N, int M, vector<int> X, vector<int> Y, vector<int> W) { ll sum = 0; for (auto x : W) sum += x; return sum; } ll res_minore_di_due(int N, int M, vector<int> X, vector<int> Y, vector<int> W) { if (N == 2) exit(-1); ll sum = 0; for (int i = 0; i < M; i ++) { if (X[i] == 1) sum += W[i]; } // cout << "sum : " << sum << '\n'; vector<vector<ll>> pos(2, vector<ll>(N + 5, 0)); for (int i = 0; i < M; i ++) { pos[X[i]][Y[i]] += W[i]; } // for (int i = 0; i < N + 5; i ++) { // cout << pos[0][i] << " "; // } // cout << '\n'; // for (int i = 0; i < N + 5; i ++) { // cout << pos[1][i] << " "; // } // cout << '\n'; ll best_res = sum; ll sum_zero = 0; ll sum_uno = 0; for (int i = 0; i < N + 5; i ++) { sum_zero += pos[0][i]; sum_uno += pos[1][i]; best_res = max(best_res, sum - sum_uno + sum_zero); // cout << "per i : " << i << " avremmo " << sum - sum_uno + sum_zero << '\n'; } return best_res; } ll max_weights(int N, int M, vector<int> X, vector<int> Y, vector<int> W) { bool all_even = 1; for (auto x : X) if (x % 2) all_even = 0; if (all_even) return sum_tutto(N, M, X, Y, W); bool minore_di_due = 1; for (auto x : X) if (x >= 2) minore_di_due = 0; return res_minore_di_due(N, M, X, Y, W); }

Compilation message (stderr)

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:56:10: warning: variable 'minore_di_due' set but not used [-Wunused-but-set-variable]
   56 |     bool minore_di_due = 1;
      |          ^~~~~~~~~~~~~
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