Submission #84162

#	Time	Username	Problem	Language	Result	Execution time	Memory
84162		nikolapesic2802	Untitled (POI11_smi)	C++14	Compilation error	0 ms	0 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
const int N=1e5+5;
vector<int> degree(N);
vector<vector<int> > graf(N);
unordered_map<int,int> visited[N];
vector<vector<int> > sol;
stack<int> stk;
vector<int> vis(N);
void solve(int tr)
{
    //printf("Usao za %i\n",tr);
    vis[tr]++;
    stk.push(tr);
    if(vis[tr]==2)
    {
        vector<int> t;
        t.pb(tr);
        vis[tr]--;
        stk.pop();
        while(stk.top()!=tr)
        {
            t.pb(stk.top());
            vis[stk.top()]--;
            stk.pop();
        }
        t.pb(stk.top());
        sol.pb(t);
    }
    for(auto p:graf[tr])
    {
        if(!visited[tr][p])
        {
            visited[tr][p]=1;
            visited[p][tr]=1;
            degree[tr]--;
            degree[p]--;
            solve(p);
            return;
        }
    }
}
void fastscan(int &number)
{
    //variable to indicate sign of input number
    bool negative = false;
    register int c;

    number = 0;

    // extract current character from buffer
    c = getchar();
    if (c=='-')
    {
        // number is negative
        negative = true;

        // extract the next character from the buffer
        c = getchar();
    }

    // Keep on extracting characters if they are integers
    // i.e ASCII Value lies from '0'(48) to '9' (57)
    for (; (c>47 && c<58); c=getchar())
        number = number *10 + c - 48;

    // if scanned input has a negative sign, negate the
    // value of the input number
    if (negative)
        number *= -1;
}
int main()
{
    int n,m;
    //scanf("%i %i",&n,&m);
    fastscan(n);
    fastscan(m);
    for(int i=0;i<m;i++)
    {
        int a,b,s,t;
        fastscan(a);
        fastscan(b);
        fastscan(s);
        fastscan(t);
        //scanf("%i %i %i %i",&a,&b,&s,&t);
        if(s!=t)
        {
            graf[a].pb(b);
            graf[b].pb(a);
            degree[a]++;
            degree[b]++;
            //printf("Dodajem iz %i u %i\n",a,b);
        }
    }
    for(int i=1;i<=n;i++)
    {
        if(degree[i]%2==1)
        {
            printf("NIE\n");
            return 0;
        }
    }
    for(int i=1;i<=n;i++)
    {
        while(degree[i]!=0)
        {
            while(stk.size())
                stk.pop();
            solve(i);
            vis[i]--;
        }
    }
    printf("%i\n",sol.size());
    for(auto p:sol)
    {
        printf("%i ",p.size()-1);
        set<int> v;
        for(auto d:p)
        {
            if(v.count(d)&&d!=p[0])
            {
                //assert(false);
            }
            v.insert(d);
            printf("%i ",d);
        }
        printf("\n");
    }
    return 0;
}
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
const int N=1e5+5;
vector<int> degree(N);
vector<vector<int> > graf(N);
unordered_map<int,int> visited[N];
vector<vector<int> > sol;
stack<int> stk;
vector<int> vis(N);
void solve(int tr)
{
    //printf("Usao za %i\n",tr);
    vis[tr]++;
    stk.push(tr);
    if(vis[tr]==2)
    {
        vector<int> t;
        t.pb(tr);
        vis[tr]--;
        stk.pop();
        while(stk.top()!=tr)
        {
            t.pb(stk.top());
            vis[stk.top()]--;
            stk.pop();
        }
        t.pb(stk.top());
        sol.pb(t);
    }
    for(auto p:graf[tr])
    {
        if(!visited[tr][p])
        {
            visited[tr][p]=1;
            visited[p][tr]=1;
            degree[tr]--;
            degree[p]--;
            solve(p);
            return;
        }
    }
}
void fastscan(int &number)
{
    //variable to indicate sign of input number
    bool negative = false;
    register int c;

    number = 0;

    // extract current character from buffer
    c = getchar();
    if (c=='-')
    {
        // number is negative
        negative = true;

        // extract the next character from the buffer
        c = getchar();
    }

    // Keep on extracting characters if they are integers
    // i.e ASCII Value lies from '0'(48) to '9' (57)
    for (; (c>47 && c<58); c=getchar())
        number = number *10 + c - 48;

    // if scanned input has a negative sign, negate the
    // value of the input number
    if (negative)
        number *= -1;
}
int main()
{
    int n,m;
    //scanf("%i %i",&n,&m);
    fastscan(n);
    fastscan(m);
    for(int i=0;i<m;i++)
    {
        int a,b,s,t;
        fastscan(a);
        fastscan(b);
        fastscan(s);
        fastscan(t);
        //scanf("%i %i %i %i",&a,&b,&s,&t);
        if(s!=t)
        {
            graf[a].pb(b);
            graf[b].pb(a);
            degree[a]++;
            degree[b]++;
            //printf("Dodajem iz %i u %i\n",a,b);
        }
    }
    for(int i=1;i<=n;i++)
    {
        if(degree[i]%2==1)
        {
            printf("NIE\n");
            return 0;
        }
    }
    for(int i=1;i<=n;i++)
    {
        while(degree[i]!=0)
        {
            while(stk.size())
                stk.pop();
            solve(i);
            vis[i]--;
        }
    }
    printf("%i\n",sol.size());
    for(auto p:sol)
    {
        printf("%i ",p.size()-1);
        set<int> v;
        for(auto d:p)
        {
            if(v.count(d)&&d!=p[0])
            {
                //assert(false);
            }
            v.insert(d);
            printf("%i ",d);
        }
        printf("\n");
    }
    return 0;
}

Compilation message (stderr)

smi.cpp: In function 'int main()':
smi.cpp:117:29: warning: format '%i' expects argument of type 'int', but argument 2 has type 'std::vector<std::vector<int> >::size_type {aka long unsigned int}' [-Wformat=]
     printf("%i\n",sol.size());
                   ~~~~~~~~~~^
smi.cpp:120:32: warning: format '%i' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
         printf("%i ",p.size()-1);
                      ~~~~~~~~~~^
smi.cpp: At global scope:
smi.cpp:141:11: error: redefinition of 'const int N'
 const int N=1e5+5;
           ^
smi.cpp:7:11: note: 'const int N' previously defined here
 const int N=1e5+5;
           ^
smi.cpp:142:21: error: redefinition of 'std::vector<int> degree'
 vector<int> degree(N);
                     ^
smi.cpp:8:13: note: 'std::vector<int> degree' previously declared here
 vector<int> degree(N);
             ^~~~~~
smi.cpp:143:28: error: redefinition of 'std::vector<std::vector<int> > graf'
 vector<vector<int> > graf(N);
                            ^
smi.cpp:9:22: note: 'std::vector<std::vector<int> > graf' previously declared here
 vector<vector<int> > graf(N);
                      ^~~~
smi.cpp:144:33: error: redefinition of 'std::unordered_map<int, int> visited [100005]'
 unordered_map<int,int> visited[N];
                                 ^
smi.cpp:10:24: note: 'std::unordered_map<int, int> visited [100005]' previously declared here
 unordered_map<int,int> visited[N];
                        ^~~~~~~
smi.cpp:145:22: error: redefinition of 'std::vector<std::vector<int> > sol'
 vector<vector<int> > sol;
                      ^~~
smi.cpp:11:22: note: 'std::vector<std::vector<int> > sol' previously declared here
 vector<vector<int> > sol;
                      ^~~
smi.cpp:146:12: error: redefinition of 'std::stack<int> stk'
 stack<int> stk;
            ^~~
smi.cpp:12:12: note: 'std::stack<int> stk' previously declared here
 stack<int> stk;
            ^~~
smi.cpp:147:18: error: redefinition of 'std::vector<int> vis'
 vector<int> vis(N);
                  ^
smi.cpp:13:13: note: 'std::vector<int> vis' previously declared here
 vector<int> vis(N);
             ^~~
smi.cpp: In function 'void solve(int)':
smi.cpp:148:6: error: redefinition of 'void solve(int)'
 void solve(int tr)
      ^~~~~
smi.cpp:14:6: note: 'void solve(int)' previously defined here
 void solve(int tr)
      ^~~~~
smi.cpp: In function 'void fastscan(int&)':
smi.cpp:181:6: error: redefinition of 'void fastscan(int&)'
 void fastscan(int &number)
      ^~~~~~~~
smi.cpp:47:6: note: 'void fastscan(int&)' previously defined here
 void fastscan(int &number)
      ^~~~~~~~
smi.cpp: In function 'int main()':
smi.cpp:210:5: error: redefinition of 'int main()'
 int main()
     ^~~~
smi.cpp:76:5: note: 'int main()' previously defined here
 int main()
     ^~~~
smi.cpp:251:29: warning: format '%i' expects argument of type 'int', but argument 2 has type 'std::vector<std::vector<int> >::size_type {aka long unsigned int}' [-Wformat=]
     printf("%i\n",sol.size());
                   ~~~~~~~~~~^
smi.cpp:254:32: warning: format '%i' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
         printf("%i ",p.size()-1);
                      ~~~~~~~~~~^