結果

問題 No.1514 Squared Matching
コンテスト
ユーザー vjudge1
提出日時 2025-07-07 12:01:06
言語 C++23
(gcc 13.3.0 + boost 1.89.0)
結果
AC  
実行時間 1,235 ms / 4,000 ms
コード長 2,767 bytes
記録
記録タグの例:
初AC ショートコード 純ショートコード 純主流ショートコード 最速実行時間
コンパイル時間 3,353 ms
コンパイル使用メモリ 278,096 KB
実行使用メモリ 443,128 KB
最終ジャッジ日時 2025-07-07 12:01:43
合計ジャッジ時間 36,121 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge2
このコードへのチャレンジ
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ファイルパターン 結果
other AC * 26
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp:23:39: warning: bad option ‘-fwhole-program’ to pragma ‘optimize’ [-Wpragmas]
   23 | #pragma GCC optimize("-fwhole-program")
      |                                       ^
main.cpp:30:41: warning: bad option ‘-fstrict-overflow’ to pragma ‘optimize’ [-Wpragmas]
   30 | #pragma GCC optimize("-fstrict-overflow")
      |                                         ^
main.cpp:32:41: warning: bad option ‘-fcse-skip-blocks’ to pragma ‘optimize’ [-Wpragmas]
   32 | #pragma GCC optimize("-fcse-skip-blocks")
      |                                         ^
main.cpp:46:51: warning: bad option ‘-funsafe-loop-optimizations’ to pragma ‘optimize’ [-Wpragmas]
   46 | #pragma GCC optimize("-funsafe-loop-optimizations")
      |                                                   ^
main.cpp:52:11: warning: bad option ‘-fwhole-program’ to attribute ‘optimize’ [-Wattributes]
   52 | void sang()
      |           ^
main.cpp:52:11: warning: bad option ‘-fstrict-overflow’ to attribute ‘optimize’ [-Wattributes]
main.cpp:52:11: warning: bad option ‘-fcse-skip-blocks’ to attribute ‘optimize’ [-Wattributes]
main.cpp:52:11: warning: bad option ‘-funsafe-loop-optimizations’ to attribute ‘optimize’ [-Wattributes]
main.cpp:79:10: warning: bad option ‘-fwhole-program’ to attribute ‘optimize’ [-Wattributes]
   79 | int main()
      |          ^
main.cpp:79:10: warning: bad option ‘-fstrict-overflow’ to attribute ‘optimize’ [-Wattributes]
main.cpp:79:10: warning: bad option ‘-fcse-skip-blocks’ to attribute ‘optimize’ [-Wattributes]
main.cpp:79:10: warning: bad option ‘-funsafe-loop-optimizations’ to attribute ‘optimize’ [-Wattributes]

ソースコード

diff #
raw source code 

# include <bits/stdc++.h>
using namespace std;
#pragma GCC target("avx")
#pragma GCC optimize("O2")
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping")
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-fwhole-program")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("inline-functions")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-fstrict-overflow")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-fcse-skip-blocks")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-fhoist-adjacent-loads")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("inline-small-functions")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("-funsafe-loop-optimizations")
#pragma GCC optimize("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")
int n,a[50000005],c[50000005],maxn=5*1e7,res;
bool b[50000005];

void sang()
{
    for (int i = 1; i <= maxn; i++)
    {
        b[i] = true;
        a[i] = i;
    }
    b[1] = false;
    for (int i = 2; i <= sqrt(maxn); i++)
    {
        if (b[i])
        {
            for (int j = i*i; j <= maxn; j+= i)
            {
                b[j] = false;
            }
            for (int j = i*i; j <= maxn; j+=i*i)
            {
                while (a[j] % (i*i) == 0)
                {
                    a[j] /= (i*i);
                }
            }
        }
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> n;
    sang();
    for (int i = 1; i <= n; i++)
    {
        c[a[i]]++;
    }
    for (int i = 1; i <= n; i++)
    {
        res += (c[i]*c[i]);
    }
    cout << res;
}
0