제출 #1103857

#제출 시각아이디문제언어결과실행 시간메모리
1103857RiverFlowFish 3 (JOI24_fish3)C++14
9 / 100
2051 ms10064 KiB
#include <bits/stdc++.h> #define nl "\n" #define no "NO" #define yes "YES" #define fi first #define se second #define vec vector #define task "main" #define _mp make_pair #define ii pair<int, int> #define sz(x) (int)x.size() #define all(x) x.begin(), x.end() #define evoid(val) return void(std::cout << val) #define FOR(i, a, b) for(int i = (a); i <= (b); ++i) #define FOD(i, b, a) for(int i = (b); i >= (a); --i) #define unq(x) sort(all(x)); x.resize(unique(all(x)) - x.begin()) using namespace std; template<typename U, typename V> bool maxi(U &a, V b) { if (a < b) { a = b; return 1; } return 0; } template<typename U, typename V> bool mini(U &a, V b) { if (a > b) { a = b; return 1; } return 0; } const int N = (int)2e5 + 9; const int mod = (int)1e9 + 7; void prepare(); void main_code(); int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); if (fopen(task".inp", "r")) { freopen(task".inp", "r", stdin); freopen(task".out", "w", stdout); } const bool MULTITEST = 0; prepare(); int num_test = 1; if (MULTITEST) cin >> num_test; while (num_test--) { main_code(); } } void prepare() {}; long long a[N], b[N], s[N], c[N]; void main_code() { int n; long long d; cin >> n >> d; for(int i = 1; i <= n; ++i) { cin >> a[i], b[i] = a[i] % d; s[i] = s[i - 1] + b[i]; } int q; cin >> q; FOR(i, 1, n) c[i] = a[i]; while (q--) { int l, r; cin >> l >> r; bool ok = 1; FOR(i, l, r) a[i] = c[i]; long long rem = 0; FOR(i, l, r) { if (rem % d != b[i]) { rem += (b[i] - rem % d + d) % d; } if (rem > a[i]) { ok = 0; break ; } a[i] -= rem; } if (!ok) { cout << -1 << nl; } else { long long ans = 0; long long re = 0; long long lst = 0; FOR(i, l, r) { long long mi=a[i]; FOR(j, i, r) { mini(mi, a[j]); } re += mi - lst; lst = mi; ans += (a[i] - re) / d; } cout << ans << nl; } } } /* Let the river flows naturally */

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:36:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:37:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
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