Submission #682888

#	Time	Username	Problem	Language	Result	Execution time	Memory
682888		mansur	Mutating DNA (IOI21_dna)	C++17	0 / 100	34 ms	3276 KiB

dna

#include<bits/stdc++.h>	

using namespace std;

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()                 
#define sz(a) a.size()
#define pf push_front
#define pb push_back
#define vt vector
#define s second
#define f first
#define nl '\n'
 
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

string a, b;

void init(string A, string B) {
	a = A, b = B;	
}

int get_distance(int x, int y) {
	vt<char> s;
	for (int i = x; i <= y; i++) 
		s.pb(b[i]);
	int ans = 0;
	for (int i = x; i <= y; i++) {
		int ps = -1;
		for (int j = 0; j < sz(s); j++) {
			if (s[j] == a[i]) {
				ps = j;
				break;
			}
		}
		if (ps == -1) return -1;
		ans += ps;
		vt<char> h;
		for (int j = 0; j < sz(s); j++) {
			if (j == ps) continue;
			h.pb(s[j]);
		}
		swap(s, h);
	}
	return ans;
}

#ifdef MANSUR 
int main() {
	int n, q;
	assert(scanf("%d %d", &n, &q) == 2);
	char A[n+1], B[n+1];
	assert(scanf("%s", A) == 1);
	assert(scanf("%s", B) == 1);
	std::string a = std::string(A);
	std::string b = std::string(B);
	std::vector<int> x(q), y(q);
	for (int i = 0; i < q; i++) {
		assert(scanf("%d %d", &x[i], &y[i]) == 2);
	}
	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++) {
		printf("%d\n", results[i]);
	}
	return 0;
}
#endif

Compilation message (stderr)

dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:32:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |   for (int j = 0; j < sz(s); j++) {
      |                     ^
dna.cpp:41:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |   for (int j = 0; j < sz(s); j++) {
      |                     ^

• Subtask 1: 0 / 21
• Subtask 2: 0 / 22
• Subtask 3: 0 / 13
• Subtask 4: 0 / 28
• Subtask 5: 0 / 16