Compilare: user.c: In function ‘main’: user.c:216:5: warning: implicit declaration of function ‘memset’ [-Wimplicit-function-declaration] memset(f,0,sizeof(f)); ^ user.c:216:5: warning: incompatible implicit declaration of built-in function ‘memset’ user.c:216:5: note: include ‘<string.h>’ or provide a declaration of ‘memset’ user.c:212:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("ausoara.in","r",stdin); ^ user.c:213:5: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("ausoara.out","w",stdout); ^ user.c:214:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.c:219:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&m); ^ user.c:223:13: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&c); ^ user.c:233:13: warning: iteration 9999u invokes undefined behavior [-Waggressive-loop-optimizations] if(f[i]==n) ^ user.c:232:5: note: containing loop for(i=1;i<=val;i++) ^ user.c:229:13: warning: iteration 9999u invokes undefined behavior [-Waggressive-loop-optimizations] if(f[i]==n) ^ user.c:228:5: note: containing loop for(i=1;i<=val;i++) ^