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#504997#9102. Zayin and ElementsCheek_supportCompile Error//C++204.0kb2024-08-04 18:08:192024-08-04 18:08:20

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  • [2024-08-04 18:08:20]
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  • [2024-08-04 18:08:19]
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answer

#pragma GCC optimize("Ofast")
#pragma GCC optimize("inline")
#pragma GCC optimize("unroll-loops")

#include <bits/stdc++.h>

#define DEBUG_VAR(x) { cerr << "* "#x" = " << x << endl; }
#define DEBUG_ARR(arr, l, r) { \ 
    cerr << "* "#arr"[" << l << ", " << r << "]:"; \
    for(auto it = l, itr = r; it <= itr; it++) \
        cerr << arr[it] << ", "; \
    cerr << endl; \
}
#define DEBUG_FMT(...) { cerr << "* "; fprintf(stderr, __VA_ARGS__); }
#define DEBUG_HERE { DEBUG_FMT("Passing [%s] in LINE %d\n", __FUNCTION__, __LINE__); } 

using namespace std;

const int N = 2e5 + 5;
const int INF = 0x3f3f3f3f;

int n, m;
int a[N], b[N], c[N];
vector<int> e[N];

int one[N], idx;
int ver[N], nxt[N], w[N], cap[N];
void addEdge(int a, int b, int c, int d)
{
    ver[idx] = b; cap[idx] = c; w[idx] = d; nxt[idx] = one[a]; one[a] = idx++;
    ver[idx] = a; cap[idx] = 0; w[idx] = -d; nxt[idx] = one[b]; one[b] = idx++;
}

int S, T;
int flow, cost;

int pre[N];
bool vis[N];

double min_cost;
int min_pre[N];
int cnt_t = 0;

void dfs(int x, double cur_cost)
{
    cnt_t++;
    assert(cnt_t <= 100000)
    // if(cnt_t > 100000) return;

    // DEBUG_VAR(x);
    if(cur_cost >= min_cost) return;
    if(x == T) {
        min_cost = cur_cost;
        for(int i = 1; i <= T; i++) {
            min_pre[i] = pre[i];
        }
        return;
    }
    
    vis[x] = true;

    for(int i = one[x]; ~i; i = nxt[i]) {
        // DEBUG_VAR(i);
        int y = ver[i];
        double z = w[i];
        if(vis[y] || !cap[i]) continue;
        if(w[i] == 1) {
            if(cap[i] % 2 == 0) {
                z = 1.9999999;
            }  else {
                z = 0;
            }
        } else if(w[i] == -1) {
            if(cap[i] % 2 == 0) {
                z = 0;
            } else {
                z = -2.000001;
            }
        }
        pre[y] = i;
        dfs(y, cur_cost + z);
        pre[y] = -1;
    }

    vis[x] = false;
}

bool EK() 
{
    fill_n(pre + 1, T, -1);
    fill_n(min_pre + 1, T, -1);

    min_cost = INF;
    cnt_t = 0;

    dfs(S, 0);
    DEBUG_VAR(min_cost);

    if(min_cost > INF - 1) return false;
    flow += 1;
    cost += round(min_cost);

    assert(flow <= n);
    // DEBUG_VAR(cost);

    int cur = T;
    int cnt_c = 0;
    while(cur != S) {
        int i = min_pre[cur];
        cap[i]--;
        cap[i ^ 1]++;
        cur = ver[i ^ 1];
        cnt_c++;
        assert(cnt_c <= 1000);
    }
    return true;
}

void solve()
{
    cin >> n >> m;

    for(int i = 1; i <= m; i++) {
        e[i].clear();
    }

    int sum = 0;
    for(int i = 1; i <= m; i++) {
        cin >> a[i] >> b[i] >> c[i];
        sum += b[i] + c[i];
        int k; cin >> k;
        while(k--) {
            int x; cin >> x;
            e[i].push_back(x);
        }
    }

    S = n + m + 1, T = n + m + 2;
    fill_n(one, T + 1, -1); idx = 0;
    
    for(int i = 1; i <= m; i++) {
        addEdge(S, i, a[i], 0);
        for(int x : e[i]) {
            addEdge(i, m + x, 1, 0);
        }
    }
    for(int i = 1; i <= n; i++) {
        addEdge(m + i, T, 1, 0);
    }

    flow = 0, cost = 0;
    while(EK());
    if(flow == n) {
        sum -= cost/2;
        cout << sum << endl;
        return;
    }
    for(int i = 1; i <= m; i++) {
        addEdge(S, i, b[i] * 2, 1);
    }

    while(EK());
    if(flow == n) {
        sum -= cost/2;
        cout << sum << endl;
        return;
    }
    for(int i = 1; i <= m; i++) {
        addEdge(S, i, c[i], 2);
    }
    while(EK());
    if(flow == n) {
        sum -= cost/2;
        cout << sum << endl;
        return;
    }

    // DEBUG_HERE;
    if(flow < n) {
        cout << "-1" << endl;
        return;
    }

    sum -= cost/2;
    cout << sum << endl;
}

int main()
{
    // freopen("1.in", "r", stdin);
    ios::sync_with_stdio(false); cin.tie(nullptr);

    int T; cin >> T;
    while(T--) {
        solve();
    }

    return 0;
}

详细

answer.code:8:32: warning: backslash and newline separated by space
    8 | #define DEBUG_ARR(arr, l, r) { \
      |                                 
answer.code: In function ‘void dfs(int, double)’:
answer.code:51:5: error: expected ‘;’ before ‘if’
   51 |     if(cur_cost >= min_cost) return;
      |     ^~