Submission #359349

#	Time	Username	Problem	Language	Result	Execution time	Memory
359349		aZvezda	Selling RNA Strands (JOI16_selling_rna)	C++14	10 / 100	1534 ms	37796 KiB

selling_rna

#include <bits/stdc++.h>
using namespace std;
//#pragma GCC optimize ("O3")
//#pragma GCC target ("sse4")
#define endl "\n"
typedef long long ll;
template<class T, class T2> inline ostream &operator <<(ostream &out, const pair<T, T2> &x) { out << x.first << " " << x.second; return out;}
template<class T, class T2> inline istream &operator >>(istream &in, pair<T, T2> &x) { in >> x.first >> x.second; return in;}
template<class T, class T2> inline bool chkmax(T &x, const T2 &y) { return x < y ? x = y, 1 : 0; }
template<class T, class T2> inline bool chkmin(T &x, const T2 &y) { return x > y ? x = y, 1 : 0; }
const ll mod = 1e9 + 7;
#define out(x) "{" << (#x) << ": " << x << "} "

const int MAX_N = 1e6 + 01;
string in[MAX_N];

bool eval(int ind, string st, string en) {
    for(int i = 0; i < st.size(); i ++) {
        if(in[ind][i] != st[i]) {
            return false;
        }
    }
    for(int i = 0; i < en.size(); i ++) {
        if(in[ind][in[ind].size() - en.size() + i] != en[i]) {
            return false;
        }
    }
    return true;
}

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    int n, m;
    cin >> n >> m;
    for(int i = 0; i < n; i ++) {
        cin >> in[i];
    }
    for(int i = 0; i < m; i ++) {
        string st, en;
        cin >> st >> en;
        int cnt = 0;
        for(int j = 0; j < n; j ++) {
            cnt += eval(j, st, en);
        }
        cout << cnt << endl;
    }
    return 0;
}

Compilation message (stderr)

selling_rna.cpp: In function 'bool eval(int, std::string, std::string)':
selling_rna.cpp:18:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for(int i = 0; i < st.size(); i ++) {
      |                    ~~^~~~~~~~~~~
selling_rna.cpp:23:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for(int i = 0; i < en.size(); i ++) {
      |                    ~~^~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 40