rt，我本地会T飞（开O2也T飞），LuoguIDE这份代码也会T飞：

//# pragma GCC optimize("Ofast,no-stack-protector")
//
//# pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

# include <bits/stdc++.h>

# define I return

# define AK 0

# define IOI ;

using namespace std;

typedef long long ll;

typedef pair <int, int> pii;

int n, m, a[105], c, s;

bitset <100005> dp;

int main () {

	ios::sync_with_stdio (0);

	cin.tie (0);

	cout.tie (0);

	for(int C=0;C<25;C++) {

        n = m = 100;

		for (int i = 0; i < n; ++ i)
		    a[i] = 100000;

		s = 0, dp.reset (), dp[0] = 1;

		for (int i = 0; i < n; ++ i) {

			c = 1000;

			while (c --)
				dp |= dp << a[i];

		}
//		for (int i = 1; i <= m; ++ i) cout << i << ':' << dp[i] << '\n';
		for (int i = 1; i <= m; ++ i)
			if (dp[i])
				++ s;

		cout << s << '\n';

	}

	I AK IOI

}

但放到题目里（U472482）就没事了？