Compilare: main.cpp: In function 'int main()': main.cpp:23:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<n;++i) ^~~ main.cpp:26:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' M[1][n]=0; ^ main.cpp:14:30: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("zmeu2.in","r",stdin); ^ main.cpp:15:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("zmeu2.out","w",stdout); ^ main.cpp:16:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&c,&n,&m); ^ main.cpp:19:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ main.cpp:29:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^