Submission #341520

#	Time	Username	Problem	Language	Result	Execution time	Memory
341520		A_D	Datum (COCI20_datum)	C++14	30 / 50	181 ms	492 KiB

datum

/*
ID: antwand1
TASK: pprime
LANG: C++
*/
#include <bits/stdc++.h>
#define ll long long
#define int long long
#define du long double
#define F first
#define S second
#define FOR(a,b) for(int a=1;a<=b;a++)
#define FORl(a,b) for(a=1;a<=b;a++)
#define FOR0(a,b) for(int a=1;a<b;a++)
#define FORl0(a,b) for(a=0;a<b;a++)
#define ii pair<int,int>
using namespace std;
int a[]={31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
bool ok(int v)
{
    if(v%4==0)a[1]=29;
    else a[1]=28;
    string s;
    while(v){
        s+=(v%10)+'0';
        v/=10;
    }
    while(s.size()<4){
        s+='0';
    }
//    cout<<s<<" ";
    int q=(s[2]-'0')*10+s[3]-'0';
  //  cout<<q<<" ";
    int g=(s[0]-'0')*10+s[1]-'0';
    //cout<<g<<endl;
    if(q==0||q>12)return 0;
    return g&&a[q]>=g;
}
bool k(int v,string S)
{
    string s="";
    while(v){
        s+=(v%10)+'0';
        v/=10;
    }
    while(s.size()<4)s=s+'0';
    string f=s;
    reverse(f.begin(),f.end());
    s+=f;
    string ans;
    for(int i=0;i<s.size();i++){
        ans+=s[i];
        if(i==1)ans+='.';
        if(i==3)ans+='.';
    }
    ans+='.';
    int q1=(ans[3]-'0')*10+ans[4]-'0';
    int g1=(ans[0]-'0')*10+ans[1]-'0';
    int q2=(S[3]-'0')*10+S[4]-'0';
    int g2=(S[0]-'0')*10+S[1]-'0';
    if((q1>q2)||(g1>g2&&q1==q2)){
        cout<<ans<<endl;
        return 1;
    }
    return 0;
}
void solve()
{
    string S;
    int cnt=0;
    cin>>S;
    int v=0;
    for(int i=0;i<S.size();i++){
        if(S[i]=='.'){
            cnt++;
            continue;
        }
        if(cnt==2){
            v*=10;
            v+=S[i]-'0';
        }
    }
    if(ok(v)&&k(v,S)){
        return;
    }
    v++;
    while(!ok(v)){
        if(v>9999)assert(0);
        v++;
    }
    string s="";
    while(v){
        s+=(v%10)+'0';
        v/=10;
    }
    while(s.size()<4)s=s+'0';
    string f=s;
    reverse(f.begin(),f.end());
    s+=f;
    string ans;
    for(int i=0;i<s.size();i++){
        ans+=s[i];
        if(i==1)ans+='.';
        if(i==3)ans+='.';
    }
    ans+='.';
    cout<<ans<<endl;
}

main()
{
    int n;
    cin>>n;
    while(n--)solve();
}

Compilation message (stderr)

datum.cpp: In function 'bool k(long long int, std::string)':
datum.cpp:51:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~
datum.cpp: In function 'void solve()':
datum.cpp:73:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |     for(int i=0;i<S.size();i++){
      |                 ~^~~~~~~~~
datum.cpp:101:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~
datum.cpp: At global scope:
datum.cpp:110:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  110 | main()
      |      ^

• Subtask 1: 30 / 50