Submission #991652

#	Time	Username	Problem	Language	Result	Execution time	Memory
991652		wood	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#include "dna.h"
#include <cstdio>
#include <cassert>
#include <string>
#include <vector>
#include "dna.h"
#include <bits/stdc++.h>  
using namespace std;
 
typedef long long ll;
typedef pair<int,int> p32;
typedef pair<ll,ll> p64;
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define vi vector<int>
#define vp32 vector<p32>
#define fast_cin() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define MOD %1000000007
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template <class T>
using Tree =
    tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
//never guess
//never debug without reviewing code
//never try adding ones or substracting them
//only step by step debug when necessay


using t = tuple<int,int,int>;
vi pa[3], pb[3];
vi res;

void init(std::string a, std::string b) {
    char cc[3] = {'A', 'C', 'T'};
    int n = a.size();
    for(int i = 0; i<3; i++){
        pa[i].resize(n+1);
        pb[i].resize(n+1);
    }
    res.resize(n+1);
    for(int i = 0; i<n; i++){
        for(int j = 0; j<3; j++){
            pa[j][i+1] = pa[j][i] + (a[i] == cc[j]);
            pb[j][i+1] = pb[j][i] + (b[i] == cc[j]);
        }
        res[i+1] = res[i]+
        (a[i]=='A'&&b[i]!='A')+
        (a[i]=='C'&&b[i]=='T');
    }
}

int get_distance(int x, int y) {
    for(int i = 0; i<3; i++){
        if(pa[i][y+1]-pa[i][x]!=pb[i][y+1]-pb[i][x]) return -1;
    }
    return res[y+1]-res[x];
}

int main() {
    #ifdef _WIN32
        freopen("input.in", "r", stdin);
        freopen("input.out", "w", stdout);
    #endif
	int n, q;
	cin>>n>>q;
    string a,b; cin>>a>>b;
	std::vector<int> x(q), y(q);
	for (int i = 0; i < q; i++) {
        cin>>x[i]>>y[i];
	}
	fclose(stdin);
	std::vector<int> results(q);
	init(a, b);
	for (int i = 0; i < q; i++) {
		results[i] = get_distance(x[i], y[i]);
	}
	for (int i = 0; i < q; i++) {
		cout<<results[i]<<'\n';
	}
	fclose(stdout);
	return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccGGsBDD.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccL36QiF.o:dna.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status