Compilare: user.c: In function ‘main’: user.c:21:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("puteri2.in","r",stdin),freopen("puteri2.out","w",stdout),scanf("%d\n",&t); ^ user.c:21:44: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("puteri2.in","r",stdin),freopen("puteri2.out","w",stdout),scanf("%d\n",&t); ^ user.c:21:76: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] freopen("puteri2.in","r",stdin),freopen("puteri2.out","w",stdout),scanf("%d\n",&t); ^ user.c:23:14: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n%d\n",s,&p),v=strlen(s),memset(e,0,sizeof(e)),memset(u,0,sizeof(u)); ^ user.c: In function ‘M’: user.c:15:9: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(i+j-2>C[0]) ^