Compilare: user.cpp: In function ‘int ssm()’: user.cpp:12:24: warning: format ‘%c’ expects argument of type ‘char*’, but argument 2 has type ‘int*’ [-Wformat=] while(scanf("%c",&k)!=EOF) ^ user.cpp:8:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, s, t, d, k, ma, id, idd; ^ user.cpp:8:18: warning: variable ‘t’ set but not used [-Wunused-but-set-variable] int i, j, s, t, d, k, ma, id, idd; ^ user.cpp:8:21: warning: unused variable ‘d’ [-Wunused-variable] int i, j, s, t, d, k, ma, id, idd; ^ user.cpp: In function ‘int main()’: user.cpp:40:13: warning: unused variable ‘j’ [-Wunused-variable] int n,i,j,cnt=0,aux,sum=0; ^ user.cpp:40:21: warning: unused variable ‘aux’ [-Wunused-variable] int n,i,j,cnt=0,aux,sum=0; ^ user.cpp:38:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresie2.in","r",stdin); ^ user.cpp:39:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresie2.out","w",stdout); ^ user.cpp:41:26: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s,100000,stdin); ^ In file included from /usr/include/stdio.h:934:0, from /usr/include/c++/4.8/cstdio:42, from user.cpp:1: In function ‘char* fgets(char*, int, FILE*)’, inlined from ‘int main()’ at user.cpp:41:26: /usr/include/i386-linux-gnu/bits/stdio2.h:253:58: warning: call to ‘__fgets_chk_warn’ declared with attribute warning: fgets called with bigger size than length of destination buffer [enabled by default] return __fgets_chk_warn (__s, __bos (__s), __n, __stream); ^