ACM線下賽中，很多時候並不提供很強大的調試軟件，這樣，如果要想調試查看map或list等信息，需要自行編寫輸出中間結果。

這裏提供一個通用框架，並附上示例，可以作為模板使用，提交代碼時註釋掉#define YLOFI和#define YDELO即可。

  1 #define YLOFI
  2 #define YDELO
  3 
  4 #include<iostream>
  5 #include<iomanip>
  6 #include<cstdio>
  7 #include<string>
  8 #include<sstream>
  9
 
 #include<map>
 10 #include<list>
 11 #include<algorithm>
 12 using namespace std;
 13 #define YCOL1 10
 14 struct yc2d{
 15     int a;
 16     int b;
 17 };
 18 
 19 #ifdef YDELO
 20 //#include "YLog.h"
 21 #include "assert.h"
 22 int ydelon = 0;
 23 int ydelom = 0;
 24 //自定義類
 25 ostream &operator
 
<<(ostream &os,const yc2d &myclass){
 26     return os << myclass.a << " " << myclass.b;
 27 }
 28 //二維數組
 29 template<typename T>
 30 void yPrintArr(const T x[][YCOL1]){
 31     int i = 0;
 32     while(1){
 33         cout << i;
 34         for(int j = 0;j<ydelom;j++){
 
 35             cout << " (" << j << "," << x[i][j] << ")";
 36         }
 37         i++;
 38         if(i >= ydelon){
 39             break;
 40         }
 41         else{
 42             cout << endl;
 43         }
 44     }
 45     return;
 46 }
 47 template<typename T>
 48 bool yPrint(const string &info,const T x[][YCOL1],int n = 0,int m = 0,bool clr = true){
 49     if(clr){
 50         system("cls");
 51     }
 52     cout << endl << "\\**********************" << endl << info << endl;
 53     ydelon = n;
 54     ydelom = m;
 55     if(ydelon > 0 && ydelom > 0){
 56         yPrintArr(x);
 57     }
 58     else{
 59         return false;
 60     }
 61     cout << endl << "**********************\\" << endl;
 62     return true;
 63 }
 64 //數組
 65 template<typename T,int size>
 66 void yPrintArr(const T (&x)[size]){
 67     int i = 0;
 68     while(1){
 69         cout << i << " " << x[i];
 70         i++;
 71         if(i >= ydelon){
 72             break;
 73         }
 74         else{
 75             cout << endl;
 76         }
 77     }
 78     return;
 79 }
 80 template<typename T,int size>
 81 bool yPrint(const string &info,const T (&x)[size],int n = 0,bool clr = true){
 82     if(clr){
 83         system("cls");
 84     }
 85     cout << endl << "\\**********************" << endl << info << endl;
 86     ydelon = n;
 87     if(ydelon > 0){
 88         yPrintArr(x);
 89     }
 90     else{
 91         return false;
 92     }
 93     cout << endl << "**********************\\" << endl;
 94     return true;
 95 }
 96 //非數組
 97 template<typename T>
 98 bool yPrint(const string &info,const T &x,int n = 0,bool clr = true){
 99     if(clr){
100         system("cls");
101     }
102     cout << endl << "\\**********************" << endl << info << endl;
103     ydelon = n;
104     if(ydelon >= 0){
105         cout << x;
106     }
107     else{
108         return false;
109     }
110     cout << endl << "**********************\\" << endl;
111     return true;
112 }
113 //list & map
114 template<typename T,typename S>
115 ostream &operator<<(ostream &os,const pair<T,S> &it){
116     return     os << it.first << " " << it.second;
117 }
118 template<typename T,typename S>
119 ostream &operator<<(ostream &os,const map<T,S> &st){
120     int n = ydelon==0?st.size():ydelon,i = 0;
121     os <<  " size=" << st.size() << " show=" << n << endl;
122     for(typename map<T,S>::const_iterator it = st.begin();it!=st.end();it++){
123         os << i << " " << *it;
124         i++;
125         if(i >= n){
126             break;
127         }
128         else{    
129             os << endl;
130         }
131     }
132     return os;
133 }
134 template<typename T>
135 ostream &operator<<(ostream &os,const list<T> &st){
136     int n = ydelon==0?st.size():ydelon,i = 0;
137     os <<  " size=" << st.size() << " show=" << n << endl;
138     for(typename list<T>::const_iterator it = st.begin();it!=st.end();it++){
139         os << i << " " << *it;
140         i++;
141         if(i >= n){
142             break;
143         }
144         else{
145             os << endl;
146         }
147     }
148     return os;
149 }
150 #endif
151 
152 int main(){
153     #ifdef YLOFI
154     freopen("yin.txt","r",stdin);
155     //freopen("yout.txt","w",stdout);
156     #endif
157     #ifdef YDELO
158     assert(1);
159     #endif
160     map<int,int> ma;
161     ma[1] = 9;
162     ma[2] = 8;
163     ma[-1] = 7;
164     list<int> li;
165     li.push_back(33);
166     li.push_back(3);
167     int a = 3;
168     double f[10] = {1.1,2.2,3.3,4.4};
169     yc2d myclass;
170     myclass.a = 3;
171     myclass.b = 2;
172     int arr2[4][YCOL1] = {{0,1,2},{2,1,0}};
173     cout << "here could be clear." << endl;
174 #ifdef YDELO
175     assert(yPrint("ma1",ma,2));
176     assert(yPrint("li",li,0,false));
177     assert(yPrint("a",a,0,false));
178     assert(yPrint("f",f,4,false));
179     assert(yPrint("myclass",myclass,0,false));
180     assert(yPrint("arr2",arr2,2,3,false));
181 #endif
182     return 0;
183 }

C++調試函數的編寫