Compilare: user.cpp: In function ‘int fct(int)’: user.cpp:14:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:31:28: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘int’ [-Wformat=] fscanf(fin, "%d", n); ^ user.cpp:20:12: warning: unused variable ‘m’ [-Wunused-variable] int n, m, c, i, vf, cc, j,afost,sir, t, n1, x; ^ user.cpp:20:15: warning: unused variable ‘c’ [-Wunused-variable] int n, m, c, i, vf, cc, j,afost,sir, t, n1, x; ^ user.cpp:20:21: warning: unused variable ‘vf’ [-Wunused-variable] int n, m, c, i, vf, cc, j,afost,sir, t, n1, x; ^ user.cpp:20:25: warning: unused variable ‘cc’ [-Wunused-variable] int n, m, c, i, vf, cc, j,afost,sir, t, n1, x; ^ user.cpp:21:10: warning: unused variable ‘ch’ [-Wunused-variable] char ch; ^ user.cpp:22:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &t, &n1); ^ user.cpp:25:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &x); ^ user.cpp:31:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", n); ^ user.cpp:33:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[j]); ^ user.cpp:31:29: warning: ‘n’ may be used uninitialized in this function [-Wmaybe-uninitialized] fscanf(fin, "%d", n); ^