Submission #864323

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
8643232023-10-22 12:14:19BlagojCrossing (JOI21_crossing)C++17
100 / 100
2487 ms77044 KiB
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
#define all(x) x.begin(), x.end()
int n;
string t;
struct SegmentTree {
string s;
vector<int> sgt, lz;
vector<char> let, slet;
void build(int k = 1, int l = 0, int r = n - 1) {
if (l == r) {
let[k] = t[l];
if (t[l] == s[l]) sgt[k] = 1;
else sgt[k] = 0;
slet[k] = s[l];
return;
}
int m = (l + r) / 2;
build(k * 2, l, m);
build(k * 2 + 1, m + 1, r);
sgt[k] = sgt[k * 2] * sgt[k * 2 + 1];
let[k] = 'z';
 
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Compilation message (stderr)

Main.cpp: In function 'std::string merge(std::string, std::string)':
Main.cpp:83:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |     for (int i = 0; i < a.size(); i++) {
      |                     ~~^~~~~~~~~~
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