Eroare de compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:39:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < g[x].size(); i++) ~~^~~~~~~~~~~~~ user.cpp:43:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(s = i = 0; i < g[x].size(); i++) ~~^~~~~~~~~~~~~ user.cpp:53:12: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] k = i+j+1>>1; ~~~^~ user.cpp: In function ‘int solve()’: user.cpp:68:13: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] mid = le+ri>>1; ~~^~~ user.cpp: In function ‘int main()’: user.cpp:99:15: error: ‘gets’ was not declared in this scope gets(ma[i]); ^ user.cpp:82:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tcast.in","r",stdin); ^ user.cpp:83:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&t); ^ user.cpp:89:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.cpp:96:13: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf(" "); ^ user.cpp:102:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tcast.out","w", stdout); ^