146539

Run ID	作者	问题	语言	测评结果	Time	Memory	代码长度	提交时间
146539	孔声豪	15反转数字	C++	Compile Error	0 MS	0 KB	1048	2026-01-29 12:09:33

Tests(0/0):

Code:

#include #include // 用于reverse函数 using namespace std; int main() { string s; cin >> s; if (s == "0") { cout << 0 << endl; return 0; } string result; if (s[0] == '-') { // 处理负数：保留负号，反转数字部分 result += '-'; string num_part = s.substr(1); reverse(num_part.begin(), num_part.end()); // 找到第一个非零位置，去除前导零 size_t first_non_zero = num_part.find_first_not_of('0'); if (first_non_zero != string::npos) { result += num_part.substr(first_non_zero); } else { result += '0'; // 处理输入为-0000的特殊情况 } } else { // 处理正数：直接反转后去除前导零 reverse(s.begin(), s.end()); size_t first_non_zero = s.find_first_not_of('0'); if (first_non_zero != string::npos) { result = s.substr(first_non_zero); } else { result = "0"; // 处理输入为0000的特殊情况 } } cout << result << endl; return 0; }

Run Info:

Main.cc:1:9: error: #include expects "FILENAME" or 
 #include
         ^
Main.cc:2:53: error: #include expects "FILENAME" or 
 #include // 用于reverse函数 using namespace std;
                                                     ^
Main.cc: In function 'int main()':
Main.cc:4:14: error: 'string' was not declared in this scope
 int main() { string s; cin >> s;
              ^
Main.cc:4:24: error: 'cin' was not declared in this scope
 int main() { string s; cin >> s;
                        ^
Main.cc:4:31: error: 's' was not declared in this scope
 int main() { string s; cin >> s;
                               ^
Main.cc:7:5: error: 'cout' was not declared in this scope
     cout << 0 << endl; 
     ^
Main.cc:7:18: error: 'endl' was not declared in this scope
     cout << 0 << endl; 
                  ^
Main.cc:11:8: error: expected ';' before 'result'
 string result; 
        ^
Main.cc:14:5: error: 'result' was not declared in this scope
     result += '-'; 
     ^
Main.cc:15:12: error: expected ';' before 'num_part'
     string num_part = s.substr(1); 
            ^
Main.cc:16:13: error: 'num_part' was not declared in this scope
     reverse(num_part.begin(), num_part.end()); 
             ^
Main.cc:16:45: error: 'reverse' was not declared in this scope
     reverse(num_part.begin(), num_part.end()); 
                                             ^
Main.cc:18:5: error: 'size_t' was not declared in this scope
     size_t first_non_zero = num_part.find_first_not_of('0'); 
     ^
Main.cc:19:9: error: 'first_non_zero' was not declared in this scope
     if (first_non_zero != string::npos) { 
         ^
Main.cc:19:27: error: 'string' is not a class, namespace, or enumeration
     if (first_non_zero != string::npos) { 
                           ^
Main.cc:26:31: error: 'reverse' was not declared in this scope
     reverse(s.begin(), s.end()); 
                               ^
Main.cc:27:5: error: 'size_t' was not declared in this scope
     size_t first_non_zero = s.find_first_not_of('0'); 
     ^
Main.cc:28:9: error: 'first_non_zero' was not declared in this scope
     if (first_non_zero != string::npos) { 
         ^
Main.cc:28:27: error: 'string' is not a class, namespace, or enumeration
     if (first_non_zero != string::npos) { 
                           ^
Main.cc:29:9: error: 'result' was not declared in this scope
         result = s.substr(first_non_zero); 
         ^
Main.cc:31:9: error: 'result' was not declared in this scope
         result = "0"; // 处理输入为0000的特殊情况 
         ^
Main.cc:35:1: error: 'cout' was not declared in this scope
 cout << result << endl; 
 ^
Main.cc:35:9: error: 'result' was not declared in this scope
 cout << result << endl; 
         ^
Main.cc:35:19: error: 'endl' was not declared in this scope
 cout << result << endl; 
                   ^