제출 #97465

#제출 시각아이디문제언어결과실행 시간메모리
97465Kastanda거래 (IZhO13_trading)C++11
100 / 100
293 ms12764 KiB
// I do it for the glory #include<bits/stdc++.h> using namespace std; const int N = 300005; int n, q, best[N * 4]; void Add(int le, int ri, int st, int id = 1, int l = 0, int r = n) { if (ri <= l || r <= le) return ; if (le <= l && r <= ri) { best[id] = max(best[id], st + l - le); return ; } Add(le, ri, st, id + id, l, (l + r) >> 1); Add(le, ri, st, id + id + 1, (l + r) >> 1, r); } void DFS(int id = 1, int l = 0, int r = n) { if (r - l < 2) { printf("%d ", max(best[id], 0)); return ; } best[id + id] = max(best[id + id], best[id]); best[id + id + 1] = max(best[id + id + 1], best[id] + ((l + r) >> 1) - l); DFS(id + id, l, (l + r) >> 1); DFS(id + id + 1, (l + r) >> 1, r); } int main() { scanf("%d%d", &n, &q); memset(best, -63, sizeof(best)); for (; q; q --) { int l, r, x; scanf("%d%d%d", &l, &r, &x); Add(l - 1, r, x); } DFS(); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

trading.cpp: In function 'int main()':
trading.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &q);
     ~~~~~^~~~~~~~~~~~~~~~
trading.cpp:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d%d", &l, &r, &x);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~
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