제출 #335520

#제출 시각아이디문제언어결과실행 시간메모리
335520luciocfMoney (IZhO17_money)C++14
0 / 100
1 ms492 KiB
#include <bits/stdc++.h> using namespace std; const int maxn = 1e6+10; int a[maxn]; int main(void) { int n; scanf("%d", &n); multiset<int> st; for (int i = 1; i <= n; i++) { scanf("%d", &a[i]); st.insert(a[i]); } int ans = 0; for (int r = n; r >= 1; r--) { ++ans; int l = r; while (l > 1) { auto it = st.lower_bound(a[l]); int v; if (it == st.begin()) v = -1; else v = *prev(it); if (a[l-1] != a[l] && a[l-1] != v) break; l--; } for (int i = r; i >= l; i--) st.erase(st.find(a[i])); r = l; } printf("%d\n", ans); }

컴파일 시 표준 에러 (stderr) 메시지

money.cpp: In function 'int main()':
money.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   12 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
money.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   18 |   scanf("%d", &a[i]);
      |   ~~~~~^~~~~~~~~~~~~
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