Submission #1014864

#	Time	Username	Problem	Language	Result	Execution time	Memory
1014864		Ausp3x	Combo (IOI18_combo)	C++17	0 / 100	0 ms	344 KiB

combo

// 人外有人，天外有天
// author: Ausp3x

#pragma GCC optimize("O1, O2, O3, Ofast, unroll-loops")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include "combo.h"
using namespace std;
using namespace __gnu_pbds;

#define fi first
#define se second
#define pb push_back
// #define DEBUG
typedef long long         lng;
typedef pair<int, int>    pi;
typedef vector<int>       vi;
typedef pair<lng, lng>    pl;
typedef vector<lng>       vl;

int const INF32 = 0x3f3f3f3f;
lng const INF64 = 0x3f3f3f3f3f3f3f3f;

#ifdef DEBUG
int press(string p) {
    return -1;
}
#endif

string guess_sequence(int N) {
    char chrs[4] = {'A', 'B', 'X', 'Y'};
    for (int i = 1; i < 4; i++) {
        string cur = "";
        cur += chrs[i];

        int res = press(cur);
        if (res == 1) {
            swap(chrs[0], chrs[i]);
            sort(chrs + 1, chrs + 4);
            break;
        }
    }

    string ans = "";
    ans += chrs[0];
    for (int _ = 1; _ < N; _++) {
        string cur = "";
        cur += ans;
        cur += chrs[2];
        cur += ans;
        cur += chrs[3];
        cur += chrs[1];
        cur += ans;
        cur += chrs[3];
        cur += chrs[2];
        cur += ans;
        cur += chrs[3];
        cur += chrs[3];
        
        int res = press(cur);
        ans += cur + chrs[res - ans.size() + 1]; 
    }

    return ans;
}

#ifdef DEBUG
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int t = 1;
    cin >> t;
    while (t--) {
    }

    return 0;
}
#endif

Compilation message (stderr)

combo.cpp:4:55: warning: bad option '-f O2' to pragma 'optimize' [-Wpragmas]
    4 | #pragma GCC optimize("O1, O2, O3, Ofast, unroll-loops")
      |                                                       ^
combo.cpp:4:55: warning: bad option '-f O3' to pragma 'optimize' [-Wpragmas]
combo.cpp:4:55: warning: bad option '-f Ofast' to pragma 'optimize' [-Wpragmas]
combo.cpp:4:55: warning: bad option '-f unroll-loops' to pragma 'optimize' [-Wpragmas]
In file included from combo.cpp:7:
combo.h:5:33: warning: bad option '-f O2' to attribute 'optimize' [-Wattributes]
    5 | std::string guess_sequence(int N);
      |                                 ^
combo.h:5:33: warning: bad option '-f O3' to attribute 'optimize' [-Wattributes]
combo.h:5:33: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes]
combo.h:5:33: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes]
combo.h:5:33: warning: bad option '-f O2' to attribute 'optimize' [-Wattributes]
combo.h:5:33: warning: bad option '-f O3' to attribute 'optimize' [-Wattributes]
combo.h:5:33: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes]
combo.h:5:33: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes]
combo.h:7:24: warning: bad option '-f O2' to attribute 'optimize' [-Wattributes]
    7 | int press(std::string p);
      |                        ^
combo.h:7:24: warning: bad option '-f O3' to attribute 'optimize' [-Wattributes]
combo.h:7:24: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes]
combo.h:7:24: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes]
combo.h:7:24: warning: bad option '-f O2' to attribute 'optimize' [-Wattributes]
combo.h:7:24: warning: bad option '-f O3' to attribute 'optimize' [-Wattributes]
combo.h:7:24: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes]
combo.h:7:24: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes]
combo.cpp:30:28: warning: bad option '-f O2' to attribute 'optimize' [-Wattributes]
   30 | string guess_sequence(int N) {
      |                            ^
combo.cpp:30:28: warning: bad option '-f O3' to attribute 'optimize' [-Wattributes]
combo.cpp:30:28: warning: bad option '-f Ofast' to attribute 'optimize' [-Wattributes]
combo.cpp:30:28: warning: bad option '-f unroll-loops' to attribute 'optimize' [-Wattributes]

• Subtask 1: 0 / 5
• Subtask 2: 0 / 95