Submission #636736

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
636736	2022-08-30 01:10:19	Cross_Ratio	Long Mansion (JOI17_long_mansion)	C++14	100 / 100	334 ms	107204 KiB

long_mansion

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#include <bits/stdc++.h>
using namespace std;
const int INF = 1e9;
int N;
int C[500005];
vector<vector<int>> A;
struct SegTree {
    vector<int> seg;
    int MAX;
    SegTree(int N) {
        int i;
        for(i=1;i<2*N;i*=2) {}
        seg.resize(i);
        MAX = i;
        for(i=0;i<MAX;i++) {
            seg[i] = INF;
        }
    }
    void cons() {
        for(int i = MAX/2-1;i>=1;i--) {
            seg[i] = min(seg[2*i], seg[2*i+1]);
        }
    }
    void update(int n) {
        n += MAX/2;
        n /= 2;
        while(n) {
            seg[n] = min(seg[2*n], seg[2*n+1]);
            n /= 2;
        }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

long_mansion.cpp: In member function 'int SegTree::sum(int, int, int, int, int)':
long_mansion.cpp:39:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   39 |         int mid = ns + ne >> 1;
      |                   ~~~^~~~
long_mansion.cpp: In function 'void init(std::vector<int>, std::vector<std::vector<int> >)':
long_mansion.cpp:62:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |         for(j=0;j<A[i].size();j++) A[i][j]--;
      |                 ~^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 15 / 15
• Subtask 4: 75 / 75