Submission #996727

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Source Code Expand

#include <cstdio>
#include <algorithm>
#include <cmath>
#include <queue>
#include <vector>
#include <map>
#include <set>

using namespace std;

typedef pair<int , int> P2;
typedef pair<pair<int , int> , int> P3;
typedef pair<pair<int , int> , pair<int , int> > P4;
#define Fst first
#define Snd second
#define PB(a) push_back(a)
#define MP(a , b) make_pair((a) , (b))
#define M3P(a , b , c) make_pair(make_pair((a) , (b)) , (c))
#define M4P(a , b , c , d) make_pair(make_pair((a) , (b)) , make_pair((c) , (d)))
#define repp(i,a,b) for(int i = (int)(a) ; i < (int)(b) ; ++i)
#define repm(i,a,b) for(int i = (int)(a) ; i > (int)(b) ; --i)
#define repv(t,it,v) for(vector<t>::iterator it = v.begin() ; it != v.end() ; ++it)

int K;
char S[100010];
int dp[2010][2010];
const int INF = 1e9 + 7;

int main(){
	scanf("%d" , &K);
	scanf(" %s" , S);
	int n = 0;
	while(S[n] != 0) ++n;
	if(n <= 2){
		if(K == 0){
			printf("%s\n" , s);
		} else if(K == 1){
			printf("%s\n" , s[0] < s[1] ? s[0] : s[1]);
		}
	} else {
		printf("%s\n" , s);
	}
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:36:20: error: ‘s’ was not declared in this scope
    printf("%s\n" , s);
                    ^
./Main.cpp:38:20: error: ‘s’ was not declared in this scope
    printf("%s\n" , s[0] < s[1] ? s[0] : s[1]);
                    ^
./Main.cpp:41:19: error: ‘s’ was not declared in this scope
   printf("%s\n" , s);
                   ^
./Main.cpp:30:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d" , &K);
                  ^
./Main.cpp:31:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf(" %s" , S);
                  ^