Submission #155500

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
155500	2019-09-28 19:28:55	karma	Regions (IOI09_regions)	C++14	13 / 100	7211 ms	131076 KiB

regions

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#include<bits/stdc++.h>
#define Task     "test"
#define pb       emplace_back
using namespace std;
const int N = int(2e5) + 1;
const int C = 25001;
const int Irene = 0;
int r[N], cur, Time, pos[C], rev[C], cnt[C];
vector<int> out[C], in[C], a[N];
vector< vector <int> > ans, rans;
int n, R, Q, p, e1, e2, res;
void DFS(int u) {
     in[r[u]].pb(++Time);
     for(int v: a[u]) DFS(v);
     out[r[u]].pb(Time);
}
void GetAns(int u) {
     for(int i = 0; i < cur; ++i) ans[i][r[u] - 1] += cnt[rev[i]];
     ++cnt[r[u]];
     for(int v: a[u]) GetAns(v);
     --cnt[r[u]];
}
void GetRans(int u, int e) {
     cnt[u] = 0;
 
 
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

regions.cpp: In function 'int main()':
regions.cpp:64:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
              while(p < in[e2].size() && in[e2][p] < v) ++p;
                    ~~^~~~~~~~~~~~~~~
regions.cpp:69:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
              while(p < in[e2].size() && in[e2][p] <= v) ++p;
                    ~~^~~~~~~~~~~~~~~
regions.cpp:43:16: 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);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
regions.cpp:44:16: 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: 13 / 15
• Subtask 2: 0 / 85