Compilare: user.c: In function ‘main’: user.c:37:1: warning: implicit declaration of function ‘strlen’ [-Wimplicit-function-declaration] n=strlen(a); ^ user.c:37:3: warning: incompatible implicit declaration of built-in function ‘strlen’ [enabled by default] n=strlen(a); ^ user.c:33:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(inFile, "%d", &t); ^ user.c:36:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(inFile, "%s", a); ^