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#300689#7857. (-1,1)-Sumpletewillow#Compile Error//C++145.3kb2024-01-08 17:07:562024-01-08 17:07:56

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answer


111
#include<bits/stdc++.h>
using namespace std;
const int mod = 998244353;
int Add(int x, int y) {
	return (x += y) >= mod ? x - mod : x;
}
int Sub(int x, int y) {
	return (x -= y) < 0 ? x + mod : x;
}
int Mul(int x, int y) {
	return 1ll * x * y % mod;
}
string eq[15][2], e;
int n, tot;
struct Dsu {
	int fa[26], can[26];
	void Init() {
		for(int i = 0; i < 26; ++ i)
			fa[i] = i, can[i] = (1 << 10) - 1;
	}
	int Get(int x) {
		return x == fa[x] ? x : fa[x] = Get(fa[x]);
	}
	int Set(int id, int l, int r) {
		int p = Get(id), to = 0;
		for(int i = l; i <= r; ++ i)
			to |= 1 << i;
		can[p] &= to;
		return can[p];
	}
	int Merge(int u, int v) {
		int x = Get(u), y = Get(v);
		if(x == y)
			return 1;
		fa[y] = x;
		can[x] &= can[y];
		return can[x];
	}
}d;
int ans, clk, to[26][26], deg[26], out[26], ways[26][10];
vector<int> G[26];
queue<int>q;
void Calc(Dsu &now, vector<vector<int> > &less) {
cerr << "One Calc: ";
for(int i = 0; i < 26; ++ i) {
	cerr << char(now.Get(i) + 'A') << " ";
}
cerr << endl;
for(int i = 0; i < 26; ++ i) {
	if(now.Get(i) == i) {
		cerr << "letter " << char(i + 'A') << ": ";
		for(int j = 0; j < 10; ++ j)
			cerr << (now.can[i] >> j & 1);
		cerr << endl;
	}
}
	++ clk;
	for(int i = 0; i < 26; ++ i) {
		deg[i] = out[i] = 0;
		fill(ways[i], ways[i] + 10, 0);
		for(int j = 0; j < 10; ++ j) {
			if(now.can[i] >> j & 1) {
				ways[i][j] = 1;
			}
		}
		G[i].clear();
		for(auto v : less[i]) {
			int x = now.Get(i), y = now.Get(v);
			if(x == y)
				return;
			if(to[x][y] != clk) {
				to[x][y] = clk;
cerr << "Constraint: " << char(x + 'A') << " < " << char(y + 'A') << endl;
				G[x].push_back(y);
				++ deg[y];
				out[x] = 1;
			}
		}
	}
	for(int i = 0; i < 26; ++ i) {
		if(now.Get(i) != i) {
			continue;
		}
		if(deg[i]) {
			continue;
		}
		q.push(i);
	}
	while(!q.empty()) {
		int u = q.front();
		q.pop();
		for(auto v : G[u]) {
			int pre = 0;
			for(int j = 0; j < 10; ++ j) {
				if(now.can[j]) {
					ways[v][j] = Mul(ways[v][j], pre);
				}
				pre = Add(pre, ways[u][j]);
			}
			if(!(-- deg[v])) {
				q.push(v);
			}
		}
	}
	int tot = 1;
	for(int i = 0; i < 26; ++ i) {
		if(!out[i] && now.Get(i) == i) {
cerr << "Ways of Letter " << char(i + 'A') << ": ";
			int sum = 0;
			for(int j = 0; j < 10; ++ j) {
cerr << ways[i][j] << " ";
				sum = Add(sum, ways[i][j]);
			}
cerr << "sum = " << sum << endl;
			tot = Mul(tot, sum);
		}
	}
cerr << tot << endl;
	ans = Add(ans, tot);
}
void Solve(int pos, Dsu now, vector<vector<int> > less) {
	if(pos == tot) {
		Calc(now, less);
		return;
	}
	int len = eq[pos][0].length();
	for(int i = 0; i < len; ++ i) {
		Dsu nxt = now;
		if(isdigit(eq[pos][0][i]) && isdigit(eq[pos][1][i])) {
			int l = eq[pos][0][i] - '0', r = eq[pos][1][i] - '0';
			if(l > r)
				break;
			if(l < r)
				Solve(pos + 1, nxt, less);
			if(eq[pos][0][i] != eq[pos][1][i]) {
				break;
			}
		}
		if(isdigit(eq[pos][0][i])) {
			int l = eq[pos][0][i] - '0', r = eq[pos][1][i] - 'A';
			if(nxt.Set(r, l + 1, 9))
				Solve(pos + 1, nxt, less);
			if(!now.Set(r, l, l))
				break;
			continue;
		}
		if(isdigit(eq[pos][1][i])) {
			int l = eq[pos][0][i] - 'A', r = eq[pos][1][i] - '0';
			if(nxt.Set(l, 0, r - 1))
				Solve(pos + 1, nxt, less);
			if(!now.Set(l, r, r))
				break;
			continue;
		}
		int l = eq[pos][0][i] - 'A', r = eq[pos][1][i] - 'A';
cerr << eq[pos][0][i] << " < " << eq[pos][1][i] << endl;
		less[l].push_back(r);
		Solve(pos + 1, nxt, less);
		less[l].pop_back();
		if(!now.Merge(l, r))
			break;
	}
}
int main() {
	ios :: sync_with_stdio(false);
	cin.tie(0), cout.tie(0);
	cin >> n;
	d.Init();
	for(int i = 1; i <= n; ++ i) {
		cin >> e;
		string lef = "", rig = "";
		int len = e.length(), pos = -1;
		for(int j = 0; j < len; ++ j) {
			if(e[j] == '=' || e[j] == '>' || e[j] == '<') {
				pos = j;
				break;
			}
		}
		for(int j = 0; j < pos; ++ j)
			lef += e[j];
		for(int j = pos + 1; j < len; ++ j)
			rig += e[j];
		if(e[pos] == '=') {
			while(lef.length() < rig.length())
				lef = '0' + lef;
			while(rig.length() < lef.length())
				rig = '0' + rig;
			int l = lef.length();
			for(int j = 0; j < l; ++ j) {
				if(isdigit(lef[j]) && isdigit(rig[j])) {
					if(lef[j] != rig[j]) {
						return 0 * puts("0");
					}
					continue;
				}
				if(isdigit(lef[j])) {
					d.Set(rig[j] - 'A', lef[j] - '0', lef[j] - '0');
					continue;
				}
				if(isdigit(rig[j])) {
					d.Set(lef[j] - 'A', rig[j] - '0', rig[j] - '0');
					continue;
				}
				d.Merge(lef[j] - 'A', rig[j] - 'A');
			}
			continue;
		}
		if(e[pos] == '>') {
			swap(lef, rig);
		}
		if(rig.length() < lef.length()) {
			int diff = lef.length() - rig.length();
			for(int j = 0; j < diff; ++ j) {
				if(!d.Set(lef[j] - 'A', 0, 0)) {
					return 0 * puts("0");
				}
			}
			string tmp = "";
			for(int j = diff; j < (int)lef.length(); ++ j) {
				tmp += lef[j];
			}
			lef = tmp;
			assert(lef.length() == rig.length());
		}
		else {
			while(lef.length() < rig.length()) {
				lef = '0' + lef;
			}
		}
		eq[tot][0] = lef;
		eq[tot][1] = rig;
cerr << eq[tot][0] << " < " << eq[tot][1] << endl;
		tot ++;
	}
	Solve(0, d, vector<vector<int> >(26, vector<int>()));
	printf("%d\n", ans);
}
源文件, 语言: C++14

详细 

answer.code:2:1: error: expected unqualified-id before numeric constant
    2 | 111
      | ^~~
In file included from /usr/include/c++/11/cmath:43,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
                 from answer.code:3:
/usr/include/c++/11/ext/type_traits.h:162:35: error: ‘bool __gnu_cxx::__is_null_pointer’ redeclared as different kind of entity
  162 |   __is_null_pointer(std::nullptr_t)
      |                                   ^
/usr/include/c++/11/ext/type_traits.h:157:5: note: previous declaration ‘template<class _Type> bool __gnu_cxx::__is_null_pointer(_Type)’
  157 |     __is_null_pointer(_Type)
      |     ^~~~~~~~~~~~~~~~~
/usr/include/c++/11/ext/type_traits.h:162:26: error: ‘nullptr_t’ is not a member of ‘std’
  162 |   __is_null_pointer(std::nullptr_t)
      |                          ^~~~~~~~~
In file included from /usr/include/c++/11/bits/exception_ptr.h:40,
                 from /usr/include/c++/11/exception:147,
                 from /usr/include/c++/11/ios:39,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from answer.code:3:
/usr/include/c++/11/new:126:26: error: declaration of ‘operator new’ as non-function
  126 | _GLIBCXX_NODISCARD void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      |                          ^~~~~~~~
/usr/include/c++/11/new:126:44: error: ‘size_t’ is not a member of ‘std’; did you mean ‘time_t’?
  126 | _GLIBCXX_NODISCARD void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      |                                            ^~~~~~
      |                                            time_t
/usr/include/c++/11/new:127:41: error: attributes after parenthesized initializer ignored [-fpermissive]
  127 |   __attribute__((__externally_visible__));
      |                                         ^
/usr/include/c++/11/new:128:26: error: declaration of ‘operator new []’ as non-function
  128 | _GLIBCXX_NODISCARD void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      |                          ^~~~~~~~
/usr/include/c++/11/new:128:46: error: ‘size_t’ is not a member of ‘std’; did you mean ‘time_t’?
  128 | _GLIBCXX_NODISCARD void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      |                                              ^~~~~~
      |                                              time_t
/usr/include/c++/11/new:129:41: error: attributes after parenthesized initializer ignored [-fpermissive]
  129 |   __attribute__((__externally_visible__));
      |                                         ^
/usr/include/c++/11/new:135:34: error: ‘std::size_t’ has not been declared
  135 | void operator delete(void*, std::size_t) _GLIBCXX_USE_NOEXCEPT
      |                                  ^~~~~~
/usr/include/c++/11/new:137:36: error: ‘std::size_t’ has not been declared
  137 | void operator delete[](void*, std::size_t) _GLIBCXX_USE_NOEXCEPT
      |                                    ^~~~~~
/usr/include/c++/11/new:140:26: error: declaration of ‘operator new’ as non-function
  140 | _GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                          ^~~~~~~~
/usr/include/c++/11/new:140:44: error: ‘size_t’ is not a member of ‘std’; did you mean ‘time_t’?
  140 | _GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                                            ^~~~~~
      |                                            time_t
/usr/include/c++/11/new:140:52: error: expected primary-expression before ‘const’
  140 | _GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                                                    ^~~~~
/usr/include/c++/11/new:142:26: error: declaration of ‘operator new []’ as non-function
  142 | _GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                          ^~~~~~~~
/usr/include/c++/11/new:142:46: error: ‘size_t’ is not a member of ‘std’; did you mean ‘time_t’?
  142 | _GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                                              ^~~~~~
      |                                              time_t
/usr/include/c++/11/new:142:54: error: expected primary-expression before ‘const’
  142 | _GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                                                      ^~~~~
/usr/include/c++/11/new:174:33: error: declaration of ‘operator new’ as non-function
  174 | _GLIBCXX_NODISCARD inline void* operator new(std::size_t, void* __p) _G...
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