Submission #519429

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
519429	2022-01-26 10:51:51	Jomnoi	Lasers (NOI19_lasers)	C++17	100 / 100	220 ms	68500 KiB

lasers

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#include <bits/stdc++.h>
#define DEBUG 0
using namespace std;
using pii = pair <int, int>;
const int N = 5e5+10;
vector <int> laser[N];
vector <int> qs[N];
int ct[N];
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int l, r;
    cin >> l >> r;
    for(int i = 1; i <= r; i++) {
        int x, y;
        cin >> x;
        while(x--) {
            cin >> y;
            laser[i].push_back(y);
        }
        qs[i].push_back(0);
        for(int j = 0; j < laser[i].size(); j++) {
            qs[i].push_back(qs[i].back()+laser[i][j]);
        }
        if(DEBUG) {
            cout << "\nDebug : ";
            for(auto v : qs[i]) {
                cout << v << " ";
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

lasers.cpp: In function 'int main()':
lasers.cpp:24:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |         for(int j = 0; j < laser[i].size(); j++) {
      |                        ~~^~~~~~~~~~~~~~~~~
lasers.cpp:40:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for(int j = 0; j < laser[i].size(); j++) {
      |                        ~~^~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 14 / 14
• Subtask 3: 20 / 20
• Subtask 4: 21 / 21
• Subtask 5: 22 / 22
• Subtask 6: 13 / 13