제출 #1019514

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1019514		NoLove	Sails (IOI07_sails)	C++14	5 / 100	1077 ms	2016 KiB

sails

/**
 *    author : Lăng Trọng Đạt
 *    created: 11-07-2024 
**/
#include <bits/stdc++.h>
using namespace std;
#ifndef LANG_DAT
#define db(...) ;
#endif // LANG_DAT
#define int long long
#define mp make_pair
#define f first
#define se second
#define pb push_back
#define all(v) (v).begin(), (v).end()
using pii = pair<int, int>;
using vi = vector<int>;
#define FOR(i, a, b) for (int (i) = a; (i) <= (b); i++)
void mx(int& a, int b) { if (b > a) a = b; }
void mi(int& a, int b) { if (b < a) a = b; }
#define si(x) (int)(x.size())
const int INF = 1e18;
const int MOD = 1e9 + 7;

const int MAXN = 1e5 + 5;
int g[MAXN], h[MAXN], k[MAXN], cnt[MAXN], id[MAXN];
int n;

int32_t main() {
    cin.tie(0)->sync_with_stdio(0);
    if (fopen("hi.inp", "r")) {
        freopen("hi.inp", "r", stdin);
//        freopen("hi.out", "w", stdout);
    } 

    cin >> n;
    FOR(i, 1, 1e5) id[i] = i;
    int ans = 0;
    FOR(i, 1, n) {
        cin >> h[i] >> k[i];
        sort(id + 1, id + h[i] + 1, [](int i, int j) {
            if (cnt[i] == cnt[j]) return i > j;
            return cnt[i] < cnt[j];
        });
        db(h[i], k[i])
        FOR(j, 1, k[i]) {
            db(j, id[j], cnt[id[j]])
            ans += cnt[id[j]];
            cnt[id[j]]++;
        }
    }

    cout << ans;

}

컴파일 시 표준 에러 (stderr) 메시지

sails.cpp: In function 'int32_t main()':
sails.cpp:18:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   18 | #define FOR(i, a, b) for (int (i) = a; (i) <= (b); i++)
      |                               ^
sails.cpp:37:5: note: in expansion of macro 'FOR'
   37 |     FOR(i, 1, 1e5) id[i] = i;
      |     ^~~
sails.cpp:18:31: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   18 | #define FOR(i, a, b) for (int (i) = a; (i) <= (b); i++)
      |                               ^
sails.cpp:39:5: note: in expansion of macro 'FOR'
   39 |     FOR(i, 1, n) {
      |     ^~~
sails.cpp:18:31: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   18 | #define FOR(i, a, b) for (int (i) = a; (i) <= (b); i++)
      |                               ^
sails.cpp:46:9: note: in expansion of macro 'FOR'
   46 |         FOR(j, 1, k[i]) {
      |         ^~~
sails.cpp:32:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |         freopen("hi.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

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