Submission #145508

#	Time	Username	Problem	Language	Result	Execution time	Memory
145508		saken03	Ljetopica (COI19_ljetopica)	C++14	Compilation error	0 ms	0 KiB

ljetopica

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>

#define pb push_back
#define mp make_pair

#define all(x) (x).begin(), (x).end()

#define fi first
#define se second

using namespace std;

//template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long ll;

using namespace __gnu_pbds;
const int MOD = (int)1e9 + 7;

int n, k;

string s;

vector<string> v;

void solve() {
    cin >> n >> k;

    cin >> s;

    string a1, b1;
    cin >> a1 >> b1;

    ll sum = 0, pt = 1;
    string t = "1";

    for (i = 0; i < n; i++) {
        if (s[i] == 'L') {
            t += '0';
        }
        else t += '1';
    }


    v.pb(t);
    t = "1";

    for (i = 0; i < n; i++) {
        if (s[i] == 'L') {
            t += '1';
        }
        else t += '0';
    }

    for (int i = 0; i < n; i++) {
        if (s[i] == 'L') {
            pt *= 2;
        }
        if (s[i] == 'R') {
            pt = pt * 2 + 1;
        }

        if (pt >= a && pt <= b) {
            sum = (sum + pt) % MOD;
        }
    }
    pt = 1;
    for (int i = 0; i < n; i++) {
        if (s[i] == 'L') {
            pt = pt * 2 + 1;
        }
        else {
            pt = pt * 2;
        }
        if (pt >= a && pt <= b) {
            sum = (sum + pt) % MOD;
        }
    }

    cout << sum % MOD << '\n';

}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    int tt = 1;

    while (tt--) {
        solve();
    }

    return 0;
}

Compilation message (stderr)

ljetopica.cpp: In function 'void solve()':
ljetopica.cpp:38:10: error: 'i' was not declared in this scope
     for (i = 0; i < n; i++) {
          ^
ljetopica.cpp:49:10: error: 'i' was not declared in this scope
     for (i = 0; i < n; i++) {
          ^
ljetopica.cpp:64:19: error: 'a' was not declared in this scope
         if (pt >= a && pt <= b) {
                   ^
ljetopica.cpp:64:30: error: 'b' was not declared in this scope
         if (pt >= a && pt <= b) {
                              ^
ljetopica.cpp:76:19: error: 'a' was not declared in this scope
         if (pt >= a && pt <= b) {
                   ^
ljetopica.cpp:76:30: error: 'b' was not declared in this scope
         if (pt >= a && pt <= b) {
                              ^