Submission #261690

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
261690	2020-08-12 01:52:31	ttnhuy313	Collapse (JOI18_collapse)	C++14	100 / 100	4759 ms	54056 KiB

collapse

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#ifndef LOCAL
#include "collapse.h"
#endif // LOCAL
#include<bits/stdc++.h>
#define pb push_back
#define mp make_pair
 
using namespace std;
const int maxn = 1e5 + 5;
typedef pair<int,int> ii;
 
int n , m , q;
vector<int> qList[maxn];
int type[maxn] , from[maxn] , to[maxn];
int cliff_at[maxn] , date[maxn];
int in[maxn] , out[maxn];
int res[maxn];
 
struct Dsurollback{
    pair<int*,int> data[(int)2e6];
    int lab[maxn] , sz;
    int FindLab(int u){
        return lab[u] < 0 ? u : FindLab(lab[u]);
    }
    void Change(int & u , int v){
        data[sz++] = mp(&u,u);
        u = v;
    }
    void rollback(int sz1){
        while(sz > sz1){
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

collapse.cpp: In function 'void solve()':
collapse.cpp:70:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(qe < norm.size() && to[norm[qe]] == i)Dsu.Merge(from[norm[qe]] , to[norm[qe]]),++qe;
                   ~~~^~~~~~~~~~~~~
collapse.cpp:72:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(qi < q.size() && cliff_at[q[qi]] == i){
                   ~~~^~~~~~~~~~
collapse.cpp:71:17: warning: unused variable 'tmp' [-Wunused-variable]
             int tmp = Dsu.cnt;
                 ^~~
collapse.cpp:89:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(qe < norm.size() && from[norm[qe]] == i){
                   ~~~^~~~~~~~~~~~~
collapse.cpp:92:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(qi < q.size() && cliff_at[q[qi]] == i - 1){
                   ~~~^~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 30 / 30
• Subtask 3: 30 / 30
• Subtask 4: 35 / 35