c_cpp 函数重载

Posted 2021-05-14

#include <bits/stdc++.h>
using namespace std;

// Complete the sum function which gives the sum of all elements in a vector regardless of its dimensions
// Trying to use sum function without any input gives following output: "LoL F@$&#^"

int sum (vector< vector<int> >v){
    vector< vector<int> >a(v.size());
    int s = 0;
    for (int i=0; i<v.size();i++){
        for (int j=0; j<v[i].size(); j++){
            s += v[i][j];
        }
    }
    return s;
}

int sum (vector<int>v){
    vector<int>a(v.size());
    int s=0;
    for (int i=0; i<v.size(); i++){
        s += v[i];
    }
    return s;
}

string sum (){
    string s = "LoL F@$&#^";
    return s;
}

int main() {
	int t;
	cin>>t;
	while (t--){
	    int n;
	    cin>>n;
	    vector<int>a(n);
	    for(int i=0;i<n;i++){
	        cin>>a[i];
	    }
	    int r,c;
	    cin>>r>>c;
	    vector< vector<int> >b(r);
	    for (int i=0; i<r; i++){
	        b[i].resize(c);
	        for(int j=0;j<c;j++){
	            cin>>b[i][j];
	        }
	    }
	    cout<<sum(a)<<endl;
	    cout<<sum(b)<<endl;
	    cout<<sum()<<endl;
	    cout<<sum()<<endl;
	    cout<<sum()<<endl;
	    }
	return 0;
}