Submission #260913

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
260913	2020-08-11 07:37:25	karma	Duathlon (APIO18_duathlon)	C++14	100 / 100	160 ms	27168 KiB

count_triplets

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#include <bits/stdc++.h>
#define pb          emplace_back
#define ll          long long
#define fi          first
#define se          second
#define mp          make_pair
//#define int         int64_t
using namespace std;
const int N = 2e5 + 7;
const int inf = 1e9 + 1;
typedef pair<int, int> pii;
int num[N], low[N];
pii e[N];
bool del[N];
vector<int> adj[N], st, g[N];
int n, m, Time, cnt, overall, sz[N];
void dfs(int u) {
    num[u] = low[u] = ++Time;
    st.pb(u);
    for(int& i: adj[u]) {
        if(del[i]) continue;
        int v = e[i].fi ^ e[i].se ^ u;
        del[i] = 1;
        if(num[v] == 0) {
            dfs(v);
            low[u] = min(low[u], low[v]);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

count_triplets.cpp: In function 'int32_t main()':
count_triplets.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(Task".inp", "r", stdin);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
count_triplets.cpp:49:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(Task".out", "w", stdout);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 11 / 11
• Subtask 3: 8 / 8
• Subtask 4: 10 / 10
• Subtask 5: 13 / 13
• Subtask 6: 15 / 15
• Subtask 7: 20 / 20
• Subtask 8: 8 / 8
• Subtask 9: 10 / 10