#867556 (D) No.2260 Adic Sum

• 問題: No.2260 Adic Sum
• ユーザー: Daylight
• 提出日時: 2023-05-09 12:02:53
• 言語: D (dmd 2.109.1)
• 結果: AC
• 実行時間: 310 ms / 2,000 ms
• コード長: 3,332 bytes
• コンパイル時間: 2,770 ms
• コンパイル使用メモリ: 233,980 KB
• 実行使用メモリ: 24,780 KB
• 最終ジャッジ日時: 2024-06-22 17:54:34
• 合計ジャッジ時間: 6,421 ms
• ジャッジサーバーID （参考情報）: judge4 / judge1

ファイルパターン	結果
sample	AC * 3
other	AC * 33

ソースコード

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public import std;
DList!string scan_buffer;
DList!char char_buffer;
static this() {
    scan_buffer = DList!(string)();
    char_buffer = DList!(char)();
}
void cin()() {
}
void cin(T, A...)(ref T a, ref A tail) {
    import std.traits : isArray;
    static if (typeof(a).stringof == "string") {
        if (!char_buffer.empty) {
            a = char_buffer.array.map!(x => x.to!string).join();
            char_buffer.clear();
        } else {
            while (scan_buffer.empty) {
                foreach (t; readln.split) {
                    if (t.length == 0) {
                        continue;
                    }
                    scan_buffer.insert(t);
                }
            }
            auto token = scan_buffer.front;
            scan_buffer.removeFront();
            a = token;
        }
    } else static if (typeof(a).stringof == "char") {
        if (!char_buffer.empty) {
            a = char_buffer.front();
            char_buffer.removeFront();
        } else {
            while (scan_buffer.empty) {
                foreach (t; readln.split) {
                    if (t.length == 0) {
                        continue;
                    }
                    scan_buffer.insert(t);
                }
            }
            auto token = scan_buffer.front;
            scan_buffer.removeFront();
            a = token[0];
            if (token.length > 1) {
                foreach (c; token[1 .. $]) {
                    char_buffer.insertBack(c);
                }
            }
        }
    } else static if (typeof(a).stringof == "char[]") {
        if (a.length == 0) {
            string token;
            cin(token);
            foreach (c; token) {
                a ~= c;
            }
        } else {
            foreach (ref v; a) {
                cin(v);
            }
        }
    } else static if (isArray!(typeof(a))) {
        foreach (ref v; a) {
            cin(v);
        }
    } else static if (isTuple!(typeof(a))) {
        foreach (i, _; a) {
            cin(a[i]);
        }
    } else {
        if (!char_buffer.empty) {
            writeln(char_buffer.array.map!(x => x.to!string));
            a = char_buffer.array.map!(x => x.to!string).join().to!T;
            char_buffer.clear();
        } else {
            while (scan_buffer.empty) {
                foreach (t; readln.split) {
                    if (t.length == 0) {
                        continue;
                    }
                    scan_buffer.insert(t);
                }
            }
            auto token = scan_buffer.front;
            scan_buffer.removeFront();
            a = token.to!T;
        }
    }
    cin(tail);
}
bool chmin(T)(ref T a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
bool chmax(T)(ref T a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}
alias PQueue(T = long, alias less = "a<b") = BinaryHeap!(Array!T, less);
void main() {
    long N, P;
    cin(N, P);
    auto A = new int[](N);
    cin(A);
    int M = A.maxElement;
    long nP = P;
    long ans = 0;
    while (nP <= M) {
        int[int] map;
        foreach (a; A) {
            ans += map.get(a % nP, 0);
            map[a % nP] = map.get(a % nP, 0) + 1;
        }
        nP *= P;
    }
    ans.writeln;
}
 
 
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