제출 #1275409

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1275409		chanhchuong123	Deda (COCI17_deda)	C++20	140 / 140	345 ms	42076 KiB

deda

#include<bits/stdc++.h>
using namespace std;

const bool multiTest = false;
#define task "C"
#define fi first
#define se second
#define MASK(i) (1LL << (i))
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define BIT(mask, i) ((mask) >> (i) & 1)

template<typename T1, typename T2> bool minimize(T1 &a, T2 b) {
	if (a > b) a = b; else return 0; return 1;
}
template<typename T1, typename T2> bool maximize(T1 &a, T2 b) {
	if (a < b) a = b; else return 0; return 1;
}

const int MAX = 200020;
int n, q;
int A[MAX];
int B[MAX];
char type[MAX];
set<int> bit[MAX];
vector<int> values;

void update(int id, int value) {
    for (; id <= max(q, n); id += id & -id)
        bit[id].insert(value);
}

int get(int id, int value) {
    int res = MAX;
    for (; id > 0; id -= id & -id) {
        auto it = bit[id].lower_bound(value);
        if (it != bit[id].end()) {
            minimize(res, *it);
        }
    }
    return res == MAX ? -1 : res;
}

void process(void) {
    cin >> n >> q;
    for (int i = 1; i <= q; ++i) {
        cin >> type[i] >> A[i] >> B[i];
        values.push_back(A[i]);
    }

    sort(all(values));
    values.resize(unique(all(values)) - values.begin());
    for (int i = 1; i <= q; ++i) {
        A[i] = lower_bound(all(values), A[i]) - values.begin() + 1;
        if (type[i] == 'M') update(A[i], B[i]);
        else cout << get(A[i], B[i]) << '\n';
    }
}

int main(void) {
	ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
	if (fopen(task".inp", "r")) {
		freopen(task".inp", "r",  stdin);
		freopen(task".out", "w", stdout);
	}

	int nTest = 1; if (multiTest) cin >> nTest;
	while (nTest--) {
		process();
	}

	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

deda.cpp: In function 'int main()':
deda.cpp:63:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |                 freopen(task".inp", "r",  stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
deda.cpp:64:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |                 freopen(task".out", "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 140 / 140