error: no match for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and ‘<unresolved overloaded function type>’)

Question

我找不到错误 'operator <<'

不匹配的解决方案

下面是我产生错误的代码，

#include <bits/stdc++.h>

using namespace std;
    
int main() {
    // your code goes here
    int t;
    std::cin >> t;
    while(t--) {
        long int i,n,count=0,idx,min=LONG_MAX;
        cin >> n;
        long int s[n];
        for(i = 0; i < n; i++) {
            cin >> s[i];
            if(s[i] <= min) {
                min = s[i];
                idx = i;
            }
        }
        
        cout << "count= " << count << " max= " << max << " idx= " << idx << "\n";
    }
}

我收到类似

的错误

prog.cpp: In function ‘int main()’: prog.cpp:19:43: error: no match
for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and
‘<unresolved overloaded function type>’)
      cout<< "count= "<< count << " max= " << max << " idx= " << idx <<"\n";
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~

谁能帮我解决这个问题。

Answer 1

首先，max（第 19 行）未声明。它给出此错误是因为它试图调用内置的 std::max（算法头文件）。

我猜你打错了它是最小值（在第 19 行）而不是最大值 :)。

error: no match for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and ‘<unresolved overloaded function type>’)

error: no match for ‘operator<<’ (operand types are ‘std::basic_ostream<char>’ and ‘<unresolved overloaded function type>’)

c++14