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main.cpp

@@ -6,8 +6,12 @@
 
 int main(void){
 	read_problem();
-	solver();
-	print_answer();
+	if(solver()){
+		printf("success!");
+		print_answer();
+	}else{
+		printf("failed...");
+	}
 
 	return 0;
 }

solver.cpp

@@ -26,6 +26,7 @@ short int board_str[900];
 short int line_board[72][72];
 short int mino_board[72][72];
 short int put_data[72][72];
+short int success=0;
 vector <int> mino_order;
 
 void reset_board(void){
@@ -552,6 +553,7 @@ int line(){
 		if(status){
 		//std::cout << "success to line" << std::endl;
 		make_answer();
+		success=1;
 	}else{
 		//std::cout << "failed to line" << std::endl;
 	}
@@ -1010,11 +1012,11 @@ void solve(void){
 	return;
 }
 
-void solver(void){
+int solver(void){
 	read_data();
 	solve();
 	/* shape(); */
 	//translate();
-	return;
+	return success;
 }
 

solver.h

@@ -5,6 +5,6 @@
 
 #define MAXSIZE 128
 
-void solver(void);
+int solver(void);
 
 #endif // _SOLVER_H_