Submission #836815

#TimeUsernameProblemLanguageResultExecution timeMemory
836815OzyCake 3 (JOI19_cake3)C++17
24 / 100
124 ms724 KiB
#include <bits/stdc++.h> using namespace std; #define rep(i,a,b) for(int i = (a); i <= (b); i++) #define repa(i,a,b) for(int i = (a); i >= (b); i--) #define lli long long int #define debug(a) cout << #a << " = " << a << endl #define debugsl(a) cout << #a << " = " << a << ", " #define pll pair<lli,lli> #define MAX 2000 //para el arreglo de orden #define tono first #define val second lli n,a,b,res,sum,m; pll arr[MAX+2]; multiset<lli> mejores; // de grande a chico int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> n >> m; rep(i,1,n) cin >> arr[i].val >> arr[i].tono; res = -(1ll<<60); sort(arr+1,arr+n+1); rep(ini,1,n-m+1) { //debug(arr[ini].tono); mejores.clear(); sum = 0; rep(fin,ini,n) { mejores.insert(arr[fin].val); sum += arr[fin].val; if (mejores.size() > m) { auto it = mejores.begin(); sum -= (*it); mejores.erase(it); } if (mejores.size() == m) { a = (arr[fin].tono-arr[ini].tono)*2; a = sum - a; res = max(res,a); } } } cout << res; return 0; }

Compilation message (stderr)

cake3.cpp: In function 'int main()':
cake3.cpp:38:32: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   38 |             if (mejores.size() > m) {
      |                 ~~~~~~~~~~~~~~~^~~
cake3.cpp:44:32: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   44 |             if (mejores.size() == m) {
      |                 ~~~~~~~~~~~~~~~^~~~
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