提出 #66979062

---

ソースコード 拡げる

#include<stdio.h>
#include<math.h>
#include<stdlib.h>
#include <string.h>

char A[200000][100000];

int main(){
    int n,q;
   	scanf("%d%d",&n,&q);
	int type;

	for(int i=0;i<=n;i++){
		sprintf(A[i],"%s","");
	}
	int p;
	char s[1000000];
    for(int i=0;i<q;i++){
		scanf("%d",&type);
		if(type==1){
   			scanf("%d",&p);
			strcpy(A[p],A[0]);

		}
		if(type==2){
			scanf("%d",&p);
			scanf("%s",s);
			strcat(A[p],s);

		}
		if(type==3){
			scanf("%d",&p);
			strcpy(A[0],A[p]);
		}
	}
	printf("%s",A[0]);
	
    return 0;
}

提出情報

コンパイルエラー

Main.c: In function ‘main’:
Main.c:10:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   10 |         scanf("%d%d",&n,&q);
      |         ^~~~~~~~~~~~~~~~~~~
Main.c:19:17: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   19 |                 scanf("%d",&type);
      |                 ^~~~~~~~~~~~~~~~~
Main.c:21:25: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   21 |                         scanf("%d",&p);
      |                         ^~~~~~~~~~~~~~
Main.c:26:25: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   26 |                         scanf("%d",&p);
      |                         ^~~~~~~~~~~~~~
Main.c:27:25: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   27 |                         scanf("%s",s);
      |                         ^~~~~~~~~~~~~
Main.c:32:25: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   32 |                         scanf("%d",&p);
      |                         ^~~~~~~~~~~~~~

ジャッジ結果