Language: C++

	return 0;
#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
#include<stdlib.h>
#include<sstream>


using namespace std;

int main(){
	int countS=0,countH=0,countC=0,countD=0;
	char s,h,c,d;
	//string w;
	int S_[13]={1,2,3,4,5,6,7,8,9,10,11,12,13};
	int H_[13]={1,2,3,4,5,6,7,8,9,10,11,12,13};
	int C_[13]={1,2,3,4,5,6,7,8,9,10,11,12,13};
	int D_[13]={1,2,3,4,5,6,7,8,9,10,11,12,13};
	vector<int> S,H,C,D;
	 int n;
	cin>>n;
	char m;
	int l;
	for(int i=0;i<n;++i){
		
		cin>>m;
		cin>>l;

		//w=m.substr(2);
		if(m=='S'){			//??\????????????????????????????????????????????????
			//s=m.substr(2);
			S.push_back(l);			//S???H???C???D??????????????????????????°????????\??????
			countS++;
		}else if(m=='H'){
			H.push_back(l);
			countH++;
		}else if(m=='C'){
			C.push_back(l);
			countC++;
		}else if(m=='D'){
			D.push_back(l);
			countD++;		
		}

	}
	sort(S.begin(),S.end());			//?????????????????????
	sort(H.begin(),H.end());
	sort(C.begin(),C.end());
	sort(D.begin(),D.end());

	if(S.size()!=13)					//S_[13]??¨????´???°???????????????????????????
		for(int i=countS;i<=13;++i){	//S[]???????????\??????
			S.push_back(0);
		}
	if(H.size()!=13)
		for(int i=countH;i<=13;++i){
			H.push_back(0);
		}
	if(C.size()!=13)
		for(int i=countC;i<=13;++i){
			C.push_back(0);
		}
	if(D.size()!=13)
		for(int i=countD;i<=13;++i){
			D.push_back(0);
		}
		bool flagS=false;
		bool flagH=false;
		bool flagC=false;
		bool flagD=false;
	//for(int i=0;i<13;++i){
	//	for(int j=0;j<13;++j){
	//		if(S_[i] == S[j])		//S_[]??¨S[]???????´??????????????????°
	//			flagS=true;			//S_?????????????????\????????????????????????
	//			break;				//?????£?????¨???????????¨
	//	}
	//	for(int j=0;j<13;++j){		//??§???S_????????¨S?????????????´????
	//		if(H_[i] == H[j])		//???????????§?????????
	//			flagH=true;			//??????????????°????????§?????????
	//			break;
	//	}
	//	for(int j=0;j<13;++j){
	//		if(C_[i] == C[j])
	//			flagC=true;
	//			break;
	//	}
	//	for(int j=0;j<13;++j){
	//		if(D_[i] == D[j])
	//			flagD=true;
	//			break;
	//	}
	//	
	//	if(flagS==false)			//????¶???????????????????????????????
	//		cout<<"S "<<S_[i]<<endl;
	//		
	//	if(flagH==false)
	//		cout<<"H "<<H_[i]<<endl;
	//		
	//	if(flagC==false)
	//		cout<<"C "<<C_[i]<<endl;
	//	
	//	if(flagD==false)
	//		cout<<"D "<<D_[i]<<endl;
	//
	//	flagS=false;
	//	flagH=false;
	//	flagC=false;
	//	flagD=false;
	//
	//} 3 4 8
		for(int i=0;i<13;++i){
			flagS=false;
			for(int j=0;j<13;++j){
				if(S_[i] == S[j])	
					flagS=true;		
					break;			
			}
			if(flagS==false)			
				cout<<"S "<<S_[i]<<endl;
			
		}
		for(int i=0;i<13;++i){
			flagH=false;
			for(int j=0;j<13;++j){	
				if(H_[i] == H[j])	
					flagH=true;		
					break;
			}
			if(flagH==false)
				cout<<"H "<<H_[i]<<endl;
			
		}
		for(int i=0;i<13;++i){
			flagC=false;
			for(int j=0;j<13;++j){
				if(C_[i] == C[j])
					flagC=true;
					break;
			}
			if(flagC==false)
				cout<<"C "<<C_[i]<<endl;
			
		}
		for(int i=0;i<13;++i){
			flagD=false;
			for(int j=0;j<13;++j){
				if(D_[i] == D[j])
					flagD=true;
					break;
			}
			if(flagD==false)
				cout<<"D "<<D_[i]<<endl;
			
		}
		
		
		
		

	return 0;
}
	

Compiler output:
a.cc:1:9: error: expected unqualified-id before 'return'
    1 |         return 0;
      |         ^~~~~~