Compilare: main.cpp: In function 'int main()': main.cpp:31:25: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=] printf("%I64d", sol1); ^ main.cpp:11:22: warning: unused variable 'sol2' [-Wunused-variable] int i, n, s = 0, sol2, max1, max2, len; ^~~~ main.cpp:11:28: warning: unused variable 'max1' [-Wunused-variable] int i, n, s = 0, sol2, max1, max2, len; ^~~~ main.cpp:11:34: warning: unused variable 'max2' [-Wunused-variable] int i, n, s = 0, sol2, max1, max2, len; ^~~~ main.cpp:11:40: warning: unused variable 'len' [-Wunused-variable] int i, n, s = 0, sol2, max1, max2, len; ^~~ main.cpp:9:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("expresie.in","r",stdin); ^ main.cpp:10:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("expresie.out","w",stdout); ^ main.cpp:13:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:17:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^ main.cpp:12:15: warning: 'sol1' may be used uninitialized in this function [-Wmaybe-uninitialized] long long sol1, x; ^~~~