d098. Stringstream運用練習(C++)

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解法一

✅ 完整代碼

評分結果(參考) ： AC (1ms, 328KB)

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

int s2i(string& s){
    int res = 0;
    for(char c : s){
        if(c<'0' || c>'9') return 0;
        res = 10*res + (c-'0');
    }
    
    return res;
}

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    string line;
    while(getline(cin, line)){
        stringstream ss(line);
        
        int sum = 0;
        string s;
        while(ss >> s){
            sum += s2i(s);
        }
        
        cout << sum << "\n";
    }
    
    return 0;
}