Submission #729461

#	Time	Username	Problem	Language	Result	Execution time	Memory
729461		vjudge1	Mutating DNA (IOI21_dna)	C++17	Compilation error	0 ms	0 KiB

dna

#include "dna.h"
#include<bits/stdc++.h>
#define eb emplace_back

const int up=1e5+1;
int cnt[3][up],dp[3][3][up];

void init(std::string a,std::string b) {
    std::map<char,int>M{{'A',0},{'B',1},{'C',2}};
    a=' '+a;
    b=' '+b;
    for(int i=1;i<a.size();++i){
        for(int j=0;j<3;++j){
            cnt[j][i]=cnt[j][i-1];
        }
        cnt[M[a[i]]][i]++;
        cnt[M[b[i]]][i]--;
        for(int j=0;j<3;++j){
            for(int k=0;k<3;++k){
                dp[j][k][i]=dp[j][k][i-1];
            }
        }
        dp[M[a[i]]][M[b[i]]][i]++;
    }
}

int get_distance(int x,int y){
    x++;
    y++;
    for(int i=0;i<3;++i){
        if(cnt[i][y]^cnt[i][x-1]) return -1;
    }
    int c[3][3];
    for(int i=0;i<3;++i){
        for(int j=0;j<3;++j){
            c[i][j]=dp[i][j][y]-dp[i][j][x-1];
        }
    }
    int ans=min(c[1][0],c[0][1])+min(c[1][2],c[2][1])+min(c[0][2],c[2][0]);
    return ans+2*abs(c[0][2]-c[2][0]);
}

Compilation message (stderr)

dna.cpp: In function 'void init(std::string, std::string)':
dna.cpp:12:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for(int i=1;i<a.size();++i){
      |                 ~^~~~~~~~~
dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:39:13: error: 'min' was not declared in this scope; did you mean 'std::min'?
   39 |     int ans=min(c[1][0],c[0][1])+min(c[1][2],c[2][1])+min(c[0][2],c[2][0]);
      |             ^~~
      |             std::min
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from dna.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:3474:5: note: 'std::min' declared here
 3474 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~