Compilare: main.cpp: In function 'void citire()': main.cpp:15:12: warning: unused variable 'j' [-Wunused-variable] int i, j; ^ main.cpp: In function 'int main()': main.cpp:62:17: warning: unused variable 'h' [-Wunused-variable] int h, r, r1, r2; ^ main.cpp:62:20: warning: variable 'r' set but not used [-Wunused-but-set-variable] int h, r, r1, r2; ^ main.cpp:62:23: warning: unused variable 'r1' [-Wunused-variable] int h, r, r1, r2; ^~ main.cpp:62:27: warning: unused variable 'r2' [-Wunused-variable] int h, r, r1, r2; ^~ main.cpp:54:9: warning: variable 'nr' set but not used [-Wunused-but-set-variable] int nr, i, j; ^~ main.cpp:54:16: warning: unused variable 'j' [-Wunused-variable] int nr, i, j; ^ main.cpp: In function 'void citire()': main.cpp:10:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cerere.in", "r", stdin); ^ main.cpp:11:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cerere.out", "w", stdout); ^ main.cpp:13:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:18:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ main.cpp:25:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&x,&y); ^ main.cpp: In function 'int str(int)': main.cpp:45:8: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] return r; ^ main.cpp: In function 'int main()': main.cpp:66:31: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] g1[i] = g1[str(i)] + 1; ~~~~~~~~~^