Submission #72448

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
72448	2018-08-26 08:14:41	김동현보다 잘함 (#118)	Easy Data Structure Problem (FXCUP3_easy)	C++17	100 / 100	190 ms	10396 KiB

easy

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<pii,int> piii;
typedef pair<ll,ll> pll;
int INF = 1e8;
int n, m;
int tree[270000], key;
int st[270000], en[270000];
vector<int> lis[100100];
void init() {
    int i;
    for (key=1;key<n;key*=2);
    for (i=1;i<key*2;i++) tree[i] = INF;
    for (i=key;i<key*2;i++) st[i] = en[i] = i-key;
    for (i=key-1;i;i--) {
        st[i] = min(st[i*2],st[i*2+1]);
        en[i] = max(en[i*2],en[i*2+1]);
    }
}
void upd(int idx, int val) {
    idx += key;
    while(idx) {
        tree[idx] = min(tree[idx],val);
        idx/=2;
    }
 
 
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Compilation message (stderr)

easy.cpp: In function 'void solve()':
easy.cpp:54:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<lis[vec[0]].size();i++) cur.push_back(pii(lis[vec[0]][i],lis[vec[0]][i]));
              ~^~~~~~~~~~~~~~~~~~~
easy.cpp:55:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=1;i<vec.size();i++) {
              ~^~~~~~~~~~~
easy.cpp:59:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (b=0;b<lis[vec[i]].size();b++) {
                  ~^~~~~~~~~~~~~~~~~~~
easy.cpp:60:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (a=0;a<cur.size();a++) {
                      ~^~~~~~~~~~~
easy.cpp: In function 'int main()':
easy.cpp:81:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
     ~~~~~^~~~~~~~~~~~~~
easy.cpp:84:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&arr[i]); arr[i]--;
         ~~~~~^~~~~~~~~~~~~~
easy.cpp:91:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&c);
         ~~~~~^~~~~~~~~
easy.cpp:95:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&a); --a;
             ~~~~~^~~~~~~~~

• Subtask 1: 33 / 33
• Subtask 2: 67 / 67