Compilare: main.cpp: In function 'int main()': main.cpp:19:9: warning: unused variable 'v' [-Wunused-variable] int v[105][105]; ^ main.cpp: In function 'int fs(int, int, int, int)': main.cpp:12:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:15:32: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nks.in","r",stdin); ^ main.cpp:16:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nks.out","w",stdout); ^ main.cpp:18:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d",&m,&n,&p,&q,&s); ^