Submission #329813

#	Time	Username	Problem	Language	Result	Execution time	Memory
329813		theshadow_04	Selling RNA Strands (JOI16_selling_rna)	C++14	0 / 100	1519 ms	15340 KiB

selling_rna

// V T An
#include <bits/stdc++.h>
#define F first
#define S second
#define MOD 1000000007
#define pb push_back
#define ll long long
#define Task "SELLINGRNA"

using namespace std;

const int maxn = 100005;

int n, m, len[maxn];
string s[maxn];

int main() {
    ios_base::sync_with_stdio(0);
    cout.tie(0); cin.tie(0);
	if(fopen(Task".inp", "r")){
		freopen(Task".inp", "r", stdin);
		freopen(Task".out", "w", stdout);
	}
    cin >> n >> m;
    for(int i = 1; i <= n; ++i) {
        cin >> s[i];
        len[i] = s[i].length();
        s[i] = " " + s[i];
    }
    for(int i = 1; i <= m; ++i) {
        int ans = 0;
        string p, q; cin >> p >> q;
        for(int j = 1; j <= n; ++ j) {
            string cur = s[j].substr(1, (int) p.size());
            if(cur != p) continue;
            cur = s[j].substr(len[j] - q.size() + 1, (int) q.size());
            if(cur == q) ans ++;
        }
        cout << ans << "\n";
    }
}

// CHY-AKAV

Compilation message (stderr)

selling_rna.cpp: In function 'int main()':
selling_rna.cpp:21:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   21 |   freopen(Task".inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
selling_rna.cpp:22:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   22 |   freopen(Task".out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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