제출 #482835

#제출 시각아이디문제언어결과실행 시간메모리
482835glomeStove (JOI18_stove)C++17
100 / 100
68 ms7148 KiB
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(false); cin.tie(0); int n,k; cin >> n >> k; vector<pair<int, int>> d; vector<int> y(n); for (int i = 0; i<n; i++) { cin >> y[i]; } for (int i = 0; i<n-1; i++) { if(y[i] + 1 == y[i + 1]) { continue; } d.push_back({y[i] + 1, y[i+1] - 1}); } sort(d.begin(), d.end(), [&] (pair<int, int> A, pair<int, int> B) { return A.second - A.first > B.second - B.first; }); map<int, bool> mark; for (int i = k - 1; i<d.size(); i++) { mark[d[i].first - 1] = 1; } int ans = 0; for (int i = 0; i<n - 1; i++) { if(mark[y[i]]) { if(i == 0) { ans += (y[i + 1] + 1) - y[i]; continue; } if(mark[y[i-1]]) { ans += y[i + 1] - y[i]; } else { ans +=( y[i + 1] + 1) - y[i]; } } else { if(i == 0) { ans++; continue; } if(!mark[y[i-1]]) { ans++; } } } if(n == 1) { ans++; } if(n >= 2) { if(!mark[y[n-2]]) { ans++; } } cout << ans << '\n'; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

stove.cpp: In function 'int main()':
stove.cpp:25:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |  for (int i = k - 1; i<d.size(); i++) {
      |                      ~^~~~~~~~~
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