Compilare: main.cpp: In function 'int main()': main.cpp:170:12: warning: unused variable 'last' [-Wunused-variable] int last = m - j + 1; ^~~~ main.cpp:160:8: warning: unused variable 'inter' [-Wunused-variable] int inter = m/2+1,cnt = 1,lungime = m/2+1; ^~~~~ main.cpp:190:12: warning: unused variable 'last' [-Wunused-variable] int last = m - j + 1; ^~~~ main.cpp:182:6: warning: unused variable 'inter' [-Wunused-variable] int inter = m/2,cnt = 1,lungime = m/2+1; ^~~~~ main.cpp:116:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("map.in", "r", stdin); ^ main.cpp:118:28: 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:134:32: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(c, 1, MAXN,stdin); ^