Compilare: main.cpp: In function 'int main()': main.cpp:40:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ll=0; ll<stabil[l].size(); ll++) ~~^~~~~~~~~~~~~~~~~ main.cpp:49:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ll=0; ll<instabil[lll].size(); ll++){ ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:14:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] { freopen("minerale.in", "r", stdin); ^ main.cpp:15:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("minerale.out", "w", stdout); ^ main.cpp:18:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d\n", &n, &m); ^ main.cpp:20:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c ", &ch); ^ main.cpp:21:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c", &ch1); ^ main.cpp:25:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c", &ch2); ^ main.cpp:31:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s+1); ^