結果

問題 No.2356 Back Door Tour in Four Seasons
ユーザー Heart_Blue
提出日時 2023-06-17 00:00:09
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 142 ms / 2,000 ms
コード長 1,655 bytes
コンパイル時間 1,400 ms
コンパイル使用メモリ 128,176 KB
最終ジャッジ日時 2025-02-14 21:42:01
ジャッジサーバーID
(参考情報)
judge5 / judge5
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
sample AC * 4
other AC * 28
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: In function ‘int main()’:
main.cpp:58:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   58 |         scanf("%d", &n);
      |         ~~~~~^~~~~~~~~~
main.cpp:63:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   63 |                 scanf(" %c%d", &c, &d);
      |                 ~~~~~^~~~~~~~~~~~~~~~~

ソースコード

diff #
プレゼンテーションモードにする

#include <cstdlib>
#include <cctype>
#include <cstring>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <vector>
#include <string>
#include <iostream>
#include <sstream>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <fstream>
#include <numeric>
#include <iomanip>
#include <bitset>
#include <list>
#include <stdexcept>
#include <functional>
#include <utility>
#include <ctime>
#include <cassert>
using namespace std;
typedef long long LL;
typedef unsigned long long ULL;
#define MEM(a,b) memset((a),(b),sizeof(a))
const LL INF = 1e9 + 7;
const int N = 2e3 + 10;
const LL mod = 998244353;
LL powmod(LL a, LL b)
{
a %= mod;
LL ret = 1;
while (b)
{
if (b & 1)
ret = ret * a % mod;
b >>= 1;
a = a * a % mod;
}
return ret;
}
vector<int> v[4];
int main()
{
//freopen("input.txt", "r", stdin);
//freopen("output.txt", "w", stdout);
LL cnt[4] = { 0,0,0,0 };
LL tot[4] = { 0,0,0,0 };
map<char, int> mc;
mc['U'] = 0;
mc['F'] = 1;
mc['W'] = 2;
mc['P'] = 3;
int n;
scanf("%d", &n);
for (int i = 0; i < n; i++)
{
char c;
int d;
scanf(" %c%d", &c, &d);
cnt[mc[c]]++;
tot[mc[c]] += d;
v[mc[c]].push_back(d);
}
if (tot[0] == 0 || tot[1] == 0 || tot[2] == 0)
{
puts("0");
return 0;
}
// x^ a - (x - 1) ^ a) + (n - 1) ^ rest
LL ans = 1;
for (int i = 0; i < 3; i++)
{
LL sum = 0;
for (auto& d : v[i])
{
sum += (powmod(n - 1, d) - powmod(n - 2, d)) % mod * powmod(n - 1, tot[i] - d) % mod;
}
sum %= mod;
ans = ans * sum % mod;
}
ans = ans * powmod(n - 1, tot[3]) % mod;
if (ans < 0) ans += mod;
ans = ans * cnt[3] % mod;
printf("%lld\n", ans);
return 0;
}
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