Submission #1251246

#	Time	Username	Problem	Language	Result	Execution time	Memory
1251246		FernandoJC07	Mutating DNA (IOI21_dna)	C++20	Compilation error	0 ms	0 KiB

dna

#include <bits/stdc++.h>
#define vi vector<int>
#define For(i, a, n) for(int i = a; i<n; ++i)
using namespace std;

unordered_map<char, int> ump;
vii ps;

int cod(int a, int b){ return a+3*b;}
pair<int, int> dec(int a){ return {a%3, a/3};}
int idec(int a) {return cod(dec(a).ss, dec(a).ff);}

void init(string a, string b){
    int n = a.size();
    ump['A'] = 0; ump['C'] = 1; ump['T'] = 2;
    ps.resize(n+1, vi(9, 0));
    For(i, 0, n){
        ps[i+1] = ps[i];
        ps[i+1][cod(ump[a[i]], ump[b[i]])]++;
    }
}

int get_distance(int x, int y){
    ++x; ++y;
    vi v(9);
    For(i, 0, 9) v[i] = ps[y][i] - ps[x-1][i];
    vi a(3, 0), b(3, 0);
    For(i, 0, 9){
        auto s = dec(i);
        a[s.ff] += v[i]; b[s.ss] += v[i];
    }
    if(a != b) return -1;
    int n = y-x+1;
    int t = n - v[0] - v[4] - v[8];
    int p = 0; For(i, 0, 9) p += min(v[i], v[idec(i)]);
    int ans = (4*t - p)/6;
    return ans;
}

Compilation message (stderr)

dna.cpp:7:1: error: 'vii' does not name a type; did you mean 'vi'?
    7 | vii ps;
      | ^~~
      | vi
dna.cpp: In function 'int idec(int)':
dna.cpp:11:36: error: 'struct std::pair<int, int>' has no member named 'ss'
   11 | int idec(int a) {return cod(dec(a).ss, dec(a).ff);}
      |                                    ^~
dna.cpp:11:47: error: 'struct std::pair<int, int>' has no member named 'ff'
   11 | int idec(int a) {return cod(dec(a).ss, dec(a).ff);}
      |                                               ^~
dna.cpp: In function 'void init(std::string, std::string)':
dna.cpp:16:5: error: 'ps' was not declared in this scope
   16 |     ps.resize(n+1, vi(9, 0));
      |     ^~
dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:26:25: error: 'ps' was not declared in this scope
   26 |     For(i, 0, 9) v[i] = ps[y][i] - ps[x-1][i];
      |                         ^~
dna.cpp:30:13: error: 'struct std::pair<int, int>' has no member named 'ff'
   30 |         a[s.ff] += v[i]; b[s.ss] += v[i];
      |             ^~
dna.cpp:30:30: error: 'struct std::pair<int, int>' has no member named 'ss'
   30 |         a[s.ff] += v[i]; b[s.ss] += v[i];
      |                              ^~