Compilare: main.cpp: In function 'int main()': main.cpp:7:12: warning: unused variable 'n' [-Wunused-variable] int t, n, c1, c2, n9, s, ls = 0, l, i, j, nq; ^ main.cpp:9:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("staropramen.in", "r", stdin); ^ main.cpp:10:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("staropramen.out", "w", stdout); ^ main.cpp:11:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &nq); ^ main.cpp:14:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &l); ^ main.cpp:18:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c%c", &_c1, &_c2); ^ main.cpp:50:33: warning: 'n9' may be used uninitialized in this function [-Wmaybe-uninitialized] for(j = 1; j<= n9; j++) ~^~~~~