제출 #44670

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
44670		choikiwon	Selling RNA Strands (JOI16_selling_rna)	C++17	0 / 100	1591 ms	149452 KiB

selling_rna

#include<bits/stdc++.h>
using namespace std;

const int mod = 1e9 + 7;

int po[100010];

int N, M;
string S[100010], P[100010], Q[100010];
vector<int> Len;
unordered_map<int, int> Cnt[100010];
vector<int> psum[100010];

int calc(int s, int l, int r) {
    return (psum[s][r] + mod - (l? 1LL * psum[s][l - 1] * po[r - l + 1] % mod : 0)) % mod;
}

void getStr(string &s) {
    while(1) {
        char c = getchar();
        if(c == ' ' || c == '\n') break;
        s.push_back(c);
    }
}

int main() {
    po[0] = 1;
    for(int i = 1; i < 100010; i++) {
        po[i] = 1LL * po[i - 1] * 128 % mod;
    }

    scanf("%d %d", &N, &M);

    getchar();
    for(int i = 0; i < N; i++) {
        getStr(S[i]);
    }

    for(int i = 0; i < M; i++) {
        getStr(P[i]);
        getStr(Q[i]);
    }

    for(int i = 0; i < M; i++) {
        Len.push_back(P[i].size() + Q[i].size());
    }
    sort(Len.begin(), Len.end());
    Len.resize(unique(Len.begin(), Len.end()) - Len.begin());

    for(int i = 0; i < N; i++) {
        psum[i].resize(2 * S[i].size());
        for(int j = 0; j < 2 * S[i].size(); j++) {
            psum[i][j] = S[i][j % (S[i].size())];
            if(j) {
                psum[i][j] += 1LL * psum[i][j - 1] * 128 % mod;
                psum[i][j] %= mod;
            }
        }

        for(int j = 0; j < Len.size(); j++) {
            for(int k = 0; k < S[i].size(); k++) {
                Cnt[ (int)S[i].size() - k ][ calc(i, k, k + Len[j] - 1) ]++;
            }
        }
    }

    for(int i = 0; i < M; i++) {
        int hash_val = 0;
        for(int j = 0; j < Q[i].size(); j++) {
            hash_val = 1LL * hash_val * 128 % mod;
            hash_val += Q[i][j];
            hash_val %= mod;
        }
        for(int j = 0; j < P[i].size(); j++) {
            hash_val = 1LL * hash_val * 128 % mod;
            hash_val += P[i][j];
            hash_val %= mod;
        }

        printf("%d\n", Cnt[ Q[i].size() ][ hash_val ]);
    }
}

컴파일 시 표준 에러 (stderr) 메시지

selling_rna.cpp: In function 'int main()':
selling_rna.cpp:52:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = 0; j < 2 * S[i].size(); j++) {
                        ~~^~~~~~~~~~~~~~~~~
selling_rna.cpp:60:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = 0; j < Len.size(); j++) {
                        ~~^~~~~~~~~~~~
selling_rna.cpp:61:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int k = 0; k < S[i].size(); k++) {
                            ~~^~~~~~~~~~~~~
selling_rna.cpp:69:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = 0; j < Q[i].size(); j++) {
                        ~~^~~~~~~~~~~~~
selling_rna.cpp:74:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int j = 0; j < P[i].size(); j++) {
                        ~~^~~~~~~~~~~~~
selling_rna.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &N, &M);
     ~~~~~^~~~~~~~~~~~~~~~~

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