제출 #968703

#제출 시각아이디문제언어결과실행 시간메모리
968703blackslexGlobal Warming (CEOI18_glo)C++17
0 / 100
47 ms4704 KiB
#include<bits/stdc++.h> using namespace std; int n, d; int main() { scanf("%d %d", &n, &d); vector<int> t(n), dp(n), dp2(n); for (auto &e: t) scanf("%d", &e); vector<int> c; for (int i = 0; i < n; i++) { auto lower = lower_bound(c.begin(), c.end(), t[i]); if (lower == c.end()) c.emplace_back(t[i]), dp[i] = c.size(); else *lower = t[i], dp[i] = lower - c.begin() + 1; } int ans = c.size(); c.clear(); for (int i = n - 1; i >= 0; i--) { auto lower = lower_bound(c.begin(), c.end(), -t[i]); dp2[i] = lower_bound(c.begin(), c.end(), -t[i] + d) - c.begin(); if (lower == c.end()) c.emplace_back(-t[i]); else *lower = -t[i]; } for (int i = 1; i < n; i++) ans = max(ans, dp[i - 1] + dp2[i]); printf("%d", ans); }

컴파일 시 표준 에러 (stderr) 메시지

glo.cpp: In function 'int main()':
glo.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     scanf("%d %d", &n, &d);
      |     ~~~~~^~~~~~~~~~~~~~~~~
glo.cpp:10:27: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     for (auto &e: t) scanf("%d", &e);
      |                      ~~~~~^~~~~~~~~~
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