Language: C++

#include <bits/stdc++.h>
using namespace std;
#define  rep(i, n) for(int i = 0; i < n; i++) 
#define  all(x) (x).begin(),(x).end()     // 昇順ソート
#define  rall(v) (v).rbegin(), (v).rend() // 降順ソート
#define  INF 1LL << 60
typedef long long int LL;
typedef long long int ll;
#define pll pair<ll, ll>
#define F first
#define S second
const int MOD = 1000000007;
template<class T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; }
template<class T> bool chmin(T &a, const T &b) { if (a>b) { a=b; return true; } return false; }
//sort(all(x))とするとソートできるよ
// 10^x は pow(10,(x)) 
// 任意のlogは　対数の底の変換を使う    log(N) / log(任意の底)

void pre(vector<int>& a,const int s,const int t){
    ++a[s];
    --a[t];
}

void imos(vector<int>& a){
    int sz = a.size();
    for(int i = 1;i <= sz;++i){
        a[i] += a[i-1];
    }
}

int main(){
    int N,C;cin >> N >> C;
    vector<int> s(N);
    vector<int> t(N);
    vector<int> c(N);
    rep(i,N)cin >> s[i] >> t[i] >> c[i],++t[i],--c[i];

    vector<vector<int>> rec(C,vector<int>(100010));
    rep(i,N){
        pre(rec[c[i]],s[i],t[i]);
    }
    rep(i,C){
        imos(rec[c[i]]);
    }
    int ans = 0;
    rep(i,100010){
        LL tmp = 0;
        rep(j,C)if(rec[j][i])tmp++;
        ans = max(ans,tmp);
    }

    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:49:18: error: no matching function for call to 'max(int&, LL&)'
   49 |         ans = max(ans,tmp);
      |               ~~~^~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:49:18: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'LL' {aka 'long long int'})
   49 |         ans = max(ans,tmp);
      |               ~~~^~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:49:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   49 |         ans = max(ans,tmp);
      |               ~~~^~~~~~~~~